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Let’s check out your problem:
The sum of
3
3
3
consecutive
integers
is
12
12
12
. Which integers are they?
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Math Problems
Algebra 1
Consecutive integer problems
Full solution
Q.
The sum of
3
3
3
consecutive integers is
12
12
12
. Which integers are they?
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Define First Integer:
Let
x
x
x
be the first integer.
\newline
Consecutive integers increase by
1
1
1
each time.
\newline
Consecutive integers:
x
x
x
,
x
+
1
x+1
x
+
1
,
x
+
2
x+2
x
+
2
Set Up Equation:
Set up the equation that represents the sum of
3
3
3
consecutive integers equal to
12
12
12
.
\newline
Equation:
x
+
(
x
+
1
)
+
(
x
+
2
)
=
12
x + (x+1) + (x+2) = 12
x
+
(
x
+
1
)
+
(
x
+
2
)
=
12
Simplify Equation:
Simplify the left side of the equation
x
+
(
x
+
1
)
+
(
x
+
2
)
=
12
x + (x+1) + (x+2) = 12
x
+
(
x
+
1
)
+
(
x
+
2
)
=
12
.
\newline
x
+
(
x
+
1
)
+
(
x
+
2
)
=
12
x + (x+1) + (x+2) = 12
x
+
(
x
+
1
)
+
(
x
+
2
)
=
12
\newline
(
x
+
x
+
x
)
+
(
1
+
2
)
=
12
(x + x + x) + (1+2) = 12
(
x
+
x
+
x
)
+
(
1
+
2
)
=
12
\newline
3
x
+
3
=
12
3x + 3 = 12
3
x
+
3
=
12
Isolate Variable Term:
Isolate the variable term in
3
x
+
3
=
12
3x + 3 = 12
3
x
+
3
=
12
.
3
x
+
3
=
12
3x + 3 = 12
3
x
+
3
=
12
3
x
+
3
−
3
=
12
−
3
3x + 3 - 3 = 12 - 3
3
x
+
3
−
3
=
12
−
3
3
x
=
9
3x = 9
3
x
=
9
Solve for x:
Solve for x.
\newline
3
x
=
9
3x = 9
3
x
=
9
\newline
3
x
3
=
9
3
\frac{3x}{3} = \frac{9}{3}
3
3
x
=
3
9
\newline
x
=
3
x = 3
x
=
3
Find Consecutive Integers:
Find the
3
3
3
consecutive integers.
\newline
Three consecutive integers:
\newline
x
x
x
,
x
+
1
x+1
x
+
1
,
x
+
2
x+2
x
+
2
\newline
3
3
3
,
3
+
1
3+1
3
+
1
,
3
+
2
3+2
3
+
2
\newline
3
3
3
,
4
4
4
,
5
5
5
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Question
Solve for x.
\newline
(
3
4
)
x
=
12
(\frac{3}{4})x= 12
(
4
3
)
x
=
12
\newline
x
=
x =
x
=
______
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Solve for x.
\newline
−
5
9
x
=
15
-\frac{5}{9}x= 15
−
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5
x
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15
\newline
x
=
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x
=
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Question
How many solutions does the following equation have?
\newline
5
x
+
8
−
7
x
=
−
4
x
+
1
5x+8-7x=-4x+1
5
x
+
8
−
7
x
=
−
4
x
+
1
\newline
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1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
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−
2
z
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10
+
7
z
=
16
z
+
7
-2z+10+7z=16z+7
−
2
z
+
10
+
7
z
=
16
z
+
7
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
7
(
y
−
8
)
=
7
y
+
42
7(y-8)=7y+42
7
(
y
−
8
)
=
7
y
+
42
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
9
(
x
+
6
)
=
−
9
x
+
108
-9(x+6)=-9x+108
−
9
(
x
+
6
)
=
−
9
x
+
108
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
6
(
x
+
7
)
=
−
4
x
−
2
-6(x+7)=-4x-2
−
6
(
x
+
7
)
=
−
4
x
−
2
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
4
x
−
7
+
10
x
=
−
7
+
6
x
-4x-7+10x=-7+6x
−
4
x
−
7
+
10
x
=
−
7
+
6
x
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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Question
How many solutions does the following equation have?
\newline
−
17
(
y
−
2
)
=
−
17
y
+
64
-17(y-2)=-17y+64
−
17
(
y
−
2
)
=
−
17
y
+
64
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
Get tutor help
Posted 1 year ago
Question
How many solutions does the following equation have?
\newline
9
z
−
6
+
7
z
=
16
z
−
6
9z-6+7z=16z-6
9
z
−
6
+
7
z
=
16
z
−
6
\newline
Choose
1
1
1
answer:
\newline
(A) No solutions
\newline
(B) Exactly one solution
\newline
(C) Infinitely many solutions
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