Question

Simplify the expression 5 + (15 + x).

A. 5x + 20
B. x + 20
C. x + 5
D. x+ 15

Answer 1

B

Explanation:

You can't do anything in the parentheses because you can't add x to 15 yet since x is unknown. Thus, you add 5 to 15 and get 20 + x or B, x + 20

Answer 2

the answer is B

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