Step-by-step explanation:
4) there are no solutions
expand the equation
-2v+4=-3-2v
the -2v cancell out and you are left with 4=-3 which is impossible
6) the answer is 5
expand
8x+38=18+12x
20=4x
x=5
8) the answer is 5
expand
-3v-12=2v-37
25=5v
v=5
Hope that helps :)
