Answer:
x = -27
Step-by-step explanation:
-55 + 4x = 80 + 9x
~Add 55 to both sides
4x = 135 + 9x
~Subtract 9x to both sides
-5x = 135
~Divide 15 to both sides
Best of Luck!
x= -27
-55+4x=80+9x
4x-9x=80+55
-5x=135
x=-27
