Solve for X.

-18=9-3x

x=9

Step-by-step explanation:

To solve for x, we need to get it by itself. To do this, we need to do the opposite of what is being done to the equation, and anything we do on one side must be done on the other.

-18=9-3x

Subtract 9 from both sides

-18-9=9-9 - 3x

-27=-3x

Divide both sides by - 3

-27/-3 = - 3x/-3

9=x

9

Step-by-step explanation:

1) Add 9 to both sides: - 18 = 9 - 3x

-9 - 9

2) The positive and negative 9 cancel each other out. Leaving you with - 27=-3x

3) Divide - 3 from both sides (isolate the x!) This will leave you with 9

So ... x = 9