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Let’s check out your problem:
Solve for
x
x
x
and write your answer in simplest form.
\newline
−
1
2
+
2
(
10
x
+
3
2
)
−
9
x
=
3
4
(
8
x
−
5
)
-\frac{1}{2}+2\left(10 x+\frac{3}{2}\right)-9 x=\frac{3}{4}(8 x-5)
−
2
1
+
2
(
10
x
+
2
3
)
−
9
x
=
4
3
(
8
x
−
5
)
\newline
Answer:
x
=
x=
x
=
View step-by-step help
Home
Math Problems
Precalculus
Operations with rational exponents
Full solution
Q.
Solve for
x
x
x
and write your answer in simplest form.
\newline
−
1
2
+
2
(
10
x
+
3
2
)
−
9
x
=
3
4
(
8
x
−
5
)
-\frac{1}{2}+2\left(10 x+\frac{3}{2}\right)-9 x=\frac{3}{4}(8 x-5)
−
2
1
+
2
(
10
x
+
2
3
)
−
9
x
=
4
3
(
8
x
−
5
)
\newline
Answer:
x
=
x=
x
=
Identify Equation:
Identify and write down the given equation.
\newline
−
1
2
+
2
(
10
x
+
3
2
)
−
9
x
=
3
4
(
8
x
−
5
)
-\frac{1}{2} + 2(10x + \frac{3}{2}) - 9x = \frac{3}{4}(8x - 5)
−
2
1
+
2
(
10
x
+
2
3
)
−
9
x
=
4
3
(
8
x
−
5
)
Distribute Left Side:
Distribute the
2
2
2
into the parentheses on the left side of the equation.
−
1
2
+
2
×
10
x
+
2
×
3
2
−
9
x
=
3
4
(
8
x
−
5
)
-\frac{1}{2} + 2 \times 10x + 2 \times \frac{3}{2} - 9x = \frac{3}{4}(8x - 5)
−
2
1
+
2
×
10
x
+
2
×
2
3
−
9
x
=
4
3
(
8
x
−
5
)
Simplify Left Side:
Simplify the left side of the equation by performing the multiplication.
−
1
2
+
20
x
+
3
−
9
x
=
3
4
(
8
x
−
5
)
-\frac{1}{2} + 20x + 3 - 9x = \frac{3}{4}(8x - 5)
−
2
1
+
20
x
+
3
−
9
x
=
4
3
(
8
x
−
5
)
Combine Like Terms:
Combine like terms on the left side of the equation.
\newline
20
x
−
9
x
+
3
−
1
2
=
3
4
(
8
x
−
5
)
20x - 9x + 3 - \frac{1}{2} = \frac{3}{4}(8x - 5)
20
x
−
9
x
+
3
−
2
1
=
4
3
(
8
x
−
5
)
Further Simplify Left:
Further simplify the left side by combining the
x
x
x
terms and the constants.
11
x
+
2.5
=
3
4
(
8
x
−
5
)
11x + 2.5 = \frac{3}{4}(8x - 5)
11
x
+
2.5
=
4
3
(
8
x
−
5
)
Distribute Right Side:
Distribute the
3
4
\frac{3}{4}
4
3
on the right side of the equation.
11
x
+
2.5
=
3
4
×
8
x
−
3
4
×
5
11x + 2.5 = \frac{3}{4} \times 8x - \frac{3}{4} \times 5
11
x
+
2.5
=
4
3
×
8
x
−
4
3
×
5
Simplify Right Side:
Simplify the right side of the equation by performing the multiplication.
11
x
+
2.5
=
6
x
−
15
4
11x + 2.5 = 6x - \frac{15}{4}
11
x
+
2.5
=
6
x
−
4
15
Subtract
6
x
6x
6
x
:
Subtract
6
x
6x
6
x
from both sides of the equation to get all
x
x
x
terms on one side.
\newline
11
x
−
6
x
+
2.5
=
6
x
−
6
x
−
15
4
11x - 6x + 2.5 = 6x - 6x - \frac{15}{4}
11
x
−
6
x
+
2.5
=
6
x
−
6
x
−
4
15
Combine Like Terms:
Simplify both sides of the equation by combining like terms.
5
x
+
2.5
=
−
15
4
5x + 2.5 = -\frac{15}{4}
5
x
+
2.5
=
−
4
15
Subtract
2
2
2
.
5
5
5
:
Subtract
2.5
2.5
2.5
from both sides of the equation to isolate the
x
x
x
term.
\newline
5
x
+
2.5
−
2.5
=
−
15
4
−
2.5
5x + 2.5 - 2.5 = -\frac{15}{4} - 2.5
5
x
+
2.5
−
2.5
=
−
4
15
−
2.5
Convert to Fraction:
Convert
2.5
2.5
2.5
to a
fraction
with the same denominator as
(
15
)
/
(
4
)
(15)/(4)
(
15
)
/
(
4
)
to combine the constants.
\newline
5
x
=
−
(
15
)
/
(
4
)
−
(
10
)
/
(
4
)
5x = -(15)/(4) - (10)/(4)
5
x
=
−
(
15
)
/
(
4
)
−
(
10
)
/
(
4
)
Combine Constants:
Combine the constants on the right side of the equation.
5
x
=
−
25
4
5x = -\frac{25}{4}
5
x
=
−
4
25
Divide by
5
5
5
:
Divide both sides of the equation by
5
5
5
to solve for
x
x
x
.
x
=
−
(
25
4
)
5
x = \frac{{-(\frac{25}{4})}}{5}
x
=
5
−
(
4
25
)
Simplify Right Side:
Simplify the right side by dividing the numerator by
5
5
5
.
x
=
−
25
20
x = -\frac{25}{20}
x
=
−
20
25
Reduce Fraction:
Reduce the fraction to its simplest form.
x
=
−
5
4
x = -\frac{5}{4}
x
=
−
4
5
More problems from Operations with rational exponents
Question
f
(
x
)
=
6
x
+
5
2
−
14
+
5
x
f(x)=\frac{6 x+5}{2-\sqrt{14+5 x}}
f
(
x
)
=
2
−
14
+
5
x
6
x
+
5
\newline
We want to find
lim
x
→
−
2
f
(
x
)
\lim _{x \rightarrow-2} f(x)
lim
x
→
−
2
f
(
x
)
.
\newline
What happens when we use direct substitution?
\newline
Choose
1
1
1
answer:
\newline
(A) The limit exists, and we found it!
\newline
(B) The limit doesn't exist (probably an asymptote).
\newline
(C) The result is indeterminate.
Get tutor help
Posted 1 year ago
Question
Let
x
4
+
y
2
=
17
x^{4}+y^{2}=17
x
4
+
y
2
=
17
.
\newline
What is the value of
d
2
y
d
x
2
\frac{d^{2} y}{d x^{2}}
d
x
2
d
2
y
at the point
(
−
2
,
1
)
(-2,1)
(
−
2
,
1
)
?
\newline
Give an exact number.
Get tutor help
Posted 1 year ago
Question
What is the area of the region bound by the graphs of
f
(
x
)
=
x
−
2
,
g
(
x
)
=
14
−
x
f(x)=\sqrt{x-2}, g(x)=14-x
f
(
x
)
=
x
−
2
,
g
(
x
)
=
14
−
x
, and
x
=
2
x=2
x
=
2
?
\newline
Choose
1
1
1
answer:
\newline
(A)
19
6
\frac{19}{6}
6
19
\newline
(B)
99
2
\frac{99}{2}
2
99
\newline
(C)
151
2
\frac{151}{2}
2
151
\newline
(D)
45
2
\frac{45}{2}
2
45
Get tutor help
Posted 1 year ago
Question
Let
g
(
x
)
=
x
4
3
g(x)=x^{\frac{4}{3}}
g
(
x
)
=
x
3
4
.
\newline
g
′
(
27
)
=
g^{\prime}(27)=
g
′
(
27
)
=
Get tutor help
Posted 1 year ago
Question
Simplify
ln
(
1
e
)
\ln \left(\frac{1}{\sqrt{e}}\right)
ln
(
e
1
)
\newline
Answer:
Get tutor help
Posted 1 year ago
Question
Simplify
ln
(
1
e
)
\ln \left(\frac{1}{e}\right)
ln
(
e
1
)
\newline
Answer:
Get tutor help
Posted 1 year ago
Question
y
=
(
sin
−
1
(
5
x
2
)
)
3
y=(\sin^{-1}(5x^{2}))^{3}
y
=
(
sin
−
1
(
5
x
2
)
)
3
Get tutor help
Posted 1 year ago
Question
(
10
x
3
−
5
x
2
−
6
x
)
÷
(
2
x
2
)
\left(10x^{3}-5x^{2}-6x\right)\div\left(2x^{2}\right)
(
10
x
3
−
5
x
2
−
6
x
)
÷
(
2
x
2
)
Get tutor help
Posted 1 year ago
Question
y
=
cos
4
x
sin
4
x
y=\cos^{4}x\sin^{4}x
y
=
cos
4
x
sin
4
x
Get tutor help
Posted 1 year ago
Question
3
5
−
3
10
\frac{3}{5}-\frac{3}{10}
5
3
−
10
3
Get tutor help
Posted 1 year ago
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