Originally Posted by

**euclid2** 1. If you are simply solving for the variable x, you must first isolate x in all of the equations.

For example for #1

-4.7+8.6x=-29.64

move -4.7 to the other side to isolate x

change to positive because moving to other side

8.6x=-29.64+4.7

8.6x=-24.94

divide by number infront of x to solve

x=-24.94/8.6

x=-2.9

Follow the same procedure for all

* always divide by the variable when you isolate it, for some of these you will need to expand before you can do that, but always remember to just move it to the other side, while changing the sign