Respuesta :

wegnerkolmp2741o

a) 8 -5v-3 = 5v-5

-5v+5 = 5v-5

identity

b) 3m-6 =4m+7

has 1 solution

c) 2w +4 = 5w -2w +4

 2w+4 = 3w+4

w=0

one solution

d)  7y+9 = 7y-6

subtract 7y from each side

9=-6  impossible

no solution

Choice D


maddybaddy2000
The answer is letter D