Question

How do you solve by substitution `11y-3x=18` and `-3=-16y+33`?

Answer 1

From the second equation calculate y and put it in the second equation.

Explanation:

`-3=-16y+33`
`16y=36`
`y=9/4`

`11y-3x=18`
`11*(9/4)-3x=18`
`-3x=18-99/4=-27/4`
`x=9/4`