Question

z+9 over 4=2.1 . what is z ?

Answer 1

\[\frac{ z+9 }{ 4 }=2.1\]???

Answer 2

That doesn't look right @Brenar

Answer 3

No, not quite @Brenar

multiply both sides by 4...and subtract 9

Answer 4

Yeah, I forgot that. Don't mind me.

Answer 5

Yes, multiply by 4 to both sides just as @johnweldon1993 has stated and subtract. Good job.

Answer 6

Should get \[z=-.6\]

Answer 7

Correct! Nicely done.
But next time, let him/her try the problem out themselves first so they can see the process and learn :)

Answer 8

He was already told the process. *shrug*