Question

Solve for x: 3x-8=13. Show full work

Answer 1

Answer:

7

Step-by-step explanation:

3x - 8 = 13

3x - 8 + 8 = 13 + 8

3x = 21

3x/3 = 21/3

x = 7

Answer 2

Answer:

$x = 7$

Step-by-step explanation:

To solve for $x$ you need to isolate the $x$ terms to one side. We have to get rid of the negative 8. To get 0 from -8 we need to add 8. Anything you do to one side you do the other so:

$3x- 8 = 13$ : Add 8 to both sides.

$3x = 21$ : Now we have 3$x$ but we only want one. So divide both sides by 3.

$x = 7$