Question

Kimmie solves the follow expression, looking at her steps, explain her mistake.

3x (3+ 12 = 3)-4
3x (15 = 3)-4
3x5-4
15-4
11

Answer 1

-6.67

Explanation:

3x(3+12=3)-4

3x(15=3)-4

3x(15/-3)-4

3x(-5)-4

3x(20)

x=20/-3

x= -6.67