Answer:
I can't see the pic or I can't answer sorry
Step-by-step explanation:
3x + 20 = 40 + 40
3x = 60
X = 20
V + 71 = 107
V = 36
H=-10+2A
Multiply both sides of the equation by 2
Move the variable to the left side and change its sign
Change the sign on both sides of the equation