3(x-4)=12-2(x-3) slove for x
Mathematics · Middle School · Tue Nov 03 2020
Answered on
Lets multiply the number 3 with (x-4) and number -2 with (x-3).
3(x-4)= 3*x-3*4
=3x-12
-2(x-3)=-2*x-2*(-3)=
=-2x+6
Now we have:
3x-12=12-2x+6
Lets put the variables on one side and the numbers on the other side. Every variable or number that will change sides, will have their sign changed from a + into a - and vice versa.
3x+2x=12+6+12
5x=30
Divide both sides with 5.
5x/5 = 30/5
x=6