Answer:
Step-by-step explanation:
20 = 8 + 3g
Now you need to isolate g to find it.. so we take 8 to the other side.. since 8 is positive.. while moving to the other side it becomes negative..
20-8 = 3g
12 = 3g
Now 3 is being multiplied by g.. so when moving to the other side is gets divided.. hence
12/3 = g
4=g
g = 4