Answer:
v=4
Explanation:
1) distribute
-129= -49 - 28v + 8v
2) Add like terms
-129= -49 - 20v
3)Isolate
-80= -20v
4)Divide
v = 4
-129 = 7(-7 -4v) + 8v
-129 = -49 - 28v + 8v
-129+49=-20v
-20v = -80
20v = 80
4.3m questions
5.6m answers