Grade 8 Math Sample Question 8

Solve for x in the following equation

– 46 = 8 – 2x

A) 18

B) -27

C) 27 (Correct Answer)

D) -18

Explanation:
The following steps could be followed to solve this equation:

-46 = 8 – 2x (+2x)-46 = 8 – 2x (+2x) (Add 2x to both sides.)

2x – 46 = 8 (Simplify.)

2x – 46 (+46) = 8 (+46) (Add 46 to both sides.)

2x = 54 (Simplify & Divide both sides by 2.)

x = 27 (Simplify.)

Related Common Core State Standard: 8.EE.7

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Ray Shawn

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