X multiplied by 3
-4 multiplied by 3
3x-12=-3
Bring the -3 to try and get the variable to one side and the number to the other.
To do that we will move the add the 12 to both sides.
3x-12 +12=-3+12
3x=4
Then you are going to divide 4 by 3 to separate the number from the variable
x=1.3333333 ♾