Answer:
X = -8
Step-by-step explanation:
-8
divide the -9 by the 72 and you get X= -8
x = - 36
multiply both sides of the equation by - 2
x = (- 2)× 18 = - 36
Sorry it was tru
2C=B
C-A=6 A=C-6
A+B+C=78
78=C-6+2C+C