Question

12+5z=2z-9

Answer 1

z=-7

Answer 2

12+5z=2z-9
12+3z=-9
3z=-21
z=-7

Answer 3

12+5z=2z-9 subtract 12 and 2z on both sides
3z=-21 divide by 3
z=-7

Answer 4

Thanks:)

Answer 5

if this is your homework, I think by how many problems you have already done, you should be able to do the rest by yourself

Answer 6

Wait until Lily23 has to take an exam :(

Answer 7

i have to wait alot huh?

Answer 8

No but Lily23 should try to solve her own equations and ask for help when she gets stuck...