Question

What is the value of the expression below when x = –2?

5 + 3(x – 7) – (x + 1)

A.–23
B.–7
C.–21
D.-5

Answer 1

The value of the expression is -21.

Answer 2

5 + 3(x-7) - (x+1)

5 + 3(-2-7) - (-2+1)

5 + 3(-9) - (-1)

5 -27 + 1

-21


The answer is C.