AnswersNC-Foundations of Math 1 Fall 1st 9 WeeksSolving with Variables on Both Sides

Solving with Variables on Both Sides Answers

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1
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What is the most efficient first step to isolate the variable term on one side of this equation? -9x = -4x + 5

A
Subtract 5 from both sides.
B
Add 5 to both sides.
C
Subtract 9x from both sides.
D
Add 4x to both sides.
2
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What is the second step to solve for x?

A
Multiply both sides by 1/5.
B
Divide both sides by 1/5.
C
Multiply both sides by 6/7.
D
Divide both sides by 6/7.
3

What is the value for x?

A
x = 16.8
B
x = 42
C
x = 60
D
x = 117.6
4

What is the first step to isolate the variable term on one side of the equation?

A
Add 5 to both sides.
B
Subtract 5 from both sides.
C
Add 1/2x to both sides.
D
Subtract 1/2x from both sides.
5

Which equations have the variable term in the equation –6 + 2x = 6x – 9 isolated to one side of the equals sign, and the constant isolated to the other side? Select all that apply.

A
–6 = 4x – 9
B
3 – 4x= 0
C
–4x = –3
D
3 = 4x
E
2x= 6x - 3
6

What is the number?

A
9
B
18
C
19
D
27

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