How do you solve 10=-3z-8?

2 Answers
Jun 5, 2018

z = -6

Explanation:

You want to move all of the numbers to one side and keep the variable on the other side.

In this case, you move the -8 to the left by adding 8 to each side, leaving you with

18 = -3z

Now that you have a number and a sole variable, you have to divide the variable so that the variable is alone. Therefore, you have to divide both sides by -3, leaving you with

-6 = z

Jun 5, 2018

z=-6

Explanation:

10=-3z-8

add 8 to both sides:

10+8=-3z-8+8

18=-3z

divide both sides by -3:

18/(-3)=(-3z)/(-3)

-6=z

flip equation:

z=-6