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Let’s check out your problem:
Evaluate the expression for
j
=
−
1.5
j = -1.5
j
=
−
1.5
.
\newline
Write your answer as a decimal or
whole number
.
\newline
18
+
12
j
=
18 + 12j =
18
+
12
j
=
_____
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Math Problems
Algebra 1
Evaluate variable expressions involving rational numbers
Full solution
Q.
Evaluate the expression for
j
=
−
1.5
j = -1.5
j
=
−
1.5
.
\newline
Write your answer as a decimal or whole number.
\newline
18
+
12
j
=
18 + 12j =
18
+
12
j
=
_____
Substitute Value of
j
j
j
:
Substitute the value of
j
j
j
into the expression.
\newline
Expression:
18
+
12
j
18 + 12j
18
+
12
j
\newline
Substitute
−
1.5
-1.5
−
1.5
for
j
j
j
:
18
+
12
(
−
1.5
)
18 + 12(-1.5)
18
+
12
(
−
1.5
)
Multiply by
−
1
-1
−
1
.
5
5
5
:
Multiply
12
12
12
by
−
1.5
-1.5
−
1.5
.
\newline
Calculation:
12
×
−
1.5
=
−
18
12 \times -1.5 = -18
12
×
−
1.5
=
−
18
Add to
18
18
18
:
Add the result from the multiplication to
18
18
18
.
\newline
Calculation:
18
+
(
−
18
)
=
0
18 + (-18) = 0
18
+
(
−
18
)
=
0
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2
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1
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\newline
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\newline
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\newline
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Question
Which equation has a constant of proportionality equal to
3
3
3
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\newline
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1
1
1
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\newline
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y
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y
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\newline
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\newline
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Question
Reduce to simplest form.
\newline
−
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Reduce to simplest form.
\newline
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Reduce to simplest form.
\newline
−
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−
(
−
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5
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−
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