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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
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5 votes
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

User Jiakang Zhang
by
8.2k points

2 Answers

6 votes
Answer:
D. add 4x to both sides


Step-by-step explanation:
-9x = -4x + 5
+ 4x + 4x
-5x = 5

-4x and -4x are opposite terms, so they cancel each other out.
Once you add 4x to both sides, the variable term (-5x) is isolated on one side of the equation.
User Bradly
by
8.6k points
6 votes
d is the correct answer
User Kumuluzz
by
7.8k points
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