Question

which equation is an identity?
a.8-(5x+2)=-5x-6
b.7z+10-z=8z-2(z-5)
c.8m-4=5m+8-m
d.6y+5=6y-5

which equation has no solution?
a.7v+2=8v-3
b.3x-5=3x+8-3
c.4y+5=4y-6
d.7z+6=-7z-5

Answer 1

3+6z=13+6z
a. z=-5/6
b.z=2 2/3
c.many solutions
d.no solution

-6p+7=3(2p-3)-4(-10+4p)
a. p=6
b.p=5
c.p=7
d.p=12

Answer 2

I know that the first question that you posted up first is D :)

Answer 3

thanks