Question

If x - 1 = 5, what is the value of 8x - 8

Answer 1

X=6 is the answer to this equation

Answer 2

Answer:

40

Step-by-step explanation:

$x - 1 = 5$

Solve the equation.

$x = 5 + 1 \\ x = 6$

Then substitute x = 6 in 8x-8

$8(6) - 8 \\ 48 - 8 \\ 40$

Or we can do this too. We factor out the expression aka 8x-8 out.

$8x - 8 = 8(x - 1)$

Because x-1=5, we substitute the expression x-1 as 5.

$8(5) = 40$