Question

Solve for x.
4(x - 1) + 4x – 1= 19

Answer 1

Answer:

x=2

Step-by-step 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

Answer:

x =3

Step-by-step 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

$\frac{8x}{8} =\frac{24}{8} \\\\x = 3$