-3 (4+3x)= -(3x - 48). need to solve for x
Mathematics · Middle School · Tue Nov 03 2020
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So we have this equation -3 (4+3x)= -(3x - 48) and we need to find the value of X. In order to solve this one, we will try to put the variable x on one side of the equation and the numbers on the other side of the equation. The sign will change from + to - and vice versa for every number and variable that will change sides.
First thing, lets multiply 3 with the bracket (4+3x).
Also on the other side of the equation, lets remove the bracket away, but since there is a - in front of the bracket, the sign inside will change from a - into a + and vice versa.
-12-9x=-3x+48
Lets put the x on one side and the numbers on the other side.
-9x+3x=48+12
-6x=60
Divide both sides with -6.
-6x/(-6) = 60/(-6)
x = -10