Question

If 3x−y=12, what is the value of 8x/2y?

Answer 1

17.2

Explanation:

3x=12+y

x=12+y/3

`8( (12 + y)/(3)) / 2y`

`(96 + 8y)/(3) * (1)/(2y)`

`(96 + 8y)/(6y)`

(y is divided by y so it no longer exists)

`(96 + 8)/(6)`

`(104)/(6)`

`17.2`