Question

How do you solve `3y – 4 = 2y – 5`?

Answer 1

`3y-4=2y-5`

Subtract `color(purple)2y` from both sides

`implies 3y-color(purple)2y-4=2y-color(purple)2y-5`
`implies y-4=-5`

Add `color(blue)4` on both sides

`implies y-4+color(blue)4=-5+color(blue)4`

`impliesy=-1`