Question

Evaluate (3x + 8) – (2x + 7) when x = 3.

Answer 1

5

Explanation:

Substitute:

(3(3)+8)-(2(3)+7)

Simplify:

(9+8)-(6+7)

17-13

5

Answer 2

4

Explanation:

Substitute x = 3 into the expression and evaluate

(3(3) + 8) - (2(3) + 7)

= (9 + 8) - (6 + 7)

= 17 - 13

= 4