Question

Solve: 5x - 2x + 6 = 18

a. x = -4
b. x = 4
c. x = 6
d. x = 8

Answer 1

3x+6 = 18

3x = 12

x = 4

Answer 2

b. x=4

Answer 3

If you simplify the like terms i.e. terms with 'x' here you will get 3x
Hence the question becomes
5x - 2x + 6 = 18
3x +6 = 18
we need to isolate the x; So take away 6 from both sides
3x =12
To find 'x', divide both sides by 3
we get
x = 4