Question

Solve the equation

5 + 4x − 7 = 4x − 2 − x


a) x = 0

b) x = 1

c) x = -3

d) x = 2

Answer 1

Explanation:

Answer 2

Subtract 7 from 5 to get −2.
−2+4x=4x−2−x
Combine 4x and −x to get 3x.
−2+4x=3x−2
Subtract 3x from both sides.
−2+4x−3x=−2
Combine 4x and −3x to get x.
−2+x=−2
Add 2 to both sides.
x=−2+2
Add −2 and 2 to get 0.
x=0