Question

Which equation is false for x = 4?

A) 2x − 8 = 0
B) 3x + 6 = 18
C) 4x + 5 = 25
D) 5x − 4 = 16

Answer 1

B

Explanation:

2x-8= substitute 2×4=8. 8-8=0 A=true

3x+6= substitute 3×4=12.12-18= 6. B=false

Answer 2

C) is the false equation

4x+5=25
4x=25-5
4x=20
x=20÷4
x=5