Answer:
C. x = 3
Step-by-step explanation:
8x - 12 = 4x
+12 + 12
8x = 4x + 12
-4x -4x
4x = 12
---- ---
4 4
x = 3
C. x = 3
8x-12= 4x
move -12 to the other side
sign changes from -12 to +12
8x-12+12= 4x+12
8x=4x+12
move 4x to the other side.
sign changes from +4x to -4x
8x-4x= 4x-4x+12
8x-4x= 12
4x=12
divide both sides by 4 to get x by itself
4x/4= 12/4
Answer: x= 3
