Question

How do you solve `3/4 y -1/2 y -5=7`?

Answer 1

`y = 48`

Explanation:

This is an equation with fractions. We can get rid of the denominators by multiplying each term by the LCM of the denominators, (which is 4).

`3/4y -1/2y -5 = 7 rArr` `color(red)4 xx 3/4y - color(red)4 xx1/2y -color(red)4 xx5 = color(red)4 xx7`

`cancelcolor(red)4 xx 3/cancel4y - color(red)cancel4^2 xx1/cancel2y -color(red)4 xx5 = color(red)4 xx7`

`3y - 2y -20 = 28`

`y = 48`