Question 4148
0.5x + 3.4 = 2.0x + 12.4
-0.5x        -0.5x
3.4=1.5x+12.4
-12.4   -12.4

-9=1.5x
and then divide by 1.5
-9/1.5=1.5x/1.5

-6=x