Answer:
3x+12=36
x=8
Step-by-step explanation:
3x=36-12
3x=24
x=24/3
8
3x + 12 = 36
-12 -12
3x/3=x and 24/3=8
one zero
hope it helped if i didn't please write back and ill try my best for further explanation
c
C. 53 + (23 + 7)