Advanced Math practice question

Answer: A. 3x + 6

Distribute −2: −2x + 6. Then 5x − 2x + 6 = 3x + 6.

Why the other answers are wrong

B. 3x − 6

−2 times −3 is +6, not −6.

C. 7x + 6

5x − 2x is 3x, not 7x; the −2 must be subtracted from the 5x.

D. 3x − 3

The −2 was not distributed onto the −3.

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