Question

Solve for x.
4(x - 1) + 4x – 1= 19

Answer 1

x=2

Explanation:

4(x+1)+4x-1 = 19

or, 4x+4+4x-1 = 19

or, 8x+3 = 19

or, 8x = 19-3

or, x = 16/8

or, x = 2

Answer 2

x =3

Explanation:

`4(x - 1) + 4x – 1= 19`

Expand

`4(x-1)=4x-4\\\\4x-4 +4x-1=19`

Collect like terms and simplify

`4x +4x=19+4+1\\\\8x = 24`

Divide both sides of the equation by 8

`(8x)/(8) =(24)/(8) \\\\x = 3`