Question

How do you solve `frac { z + 6} { 3} = \frac { 2z} { 4}`?

Answer 1

`z = 12`

Explanation:

`(z + 6)/3 = (2z)/4`

Multiply throughout by `12 (3*4)`

`4(z+6) =3*2z`

simplify
`4z+24 = 6z`

Subtract `4z` from each side
`24 = 2z`

Divide both sides by `2`
`z = 12`