Question

How do you find ordered pairs that is a solution for the equation 4x – 3y = 12?

Answer 1

There are many .. `(6, 4) (9 , 8)` etc

Explanation:

First change the equation into an easier form:
`3y = 4x - 12`
`y = 4/3x - 4`

Now choose values of `x` and substitute to find `y`.

However, it will be easier to use multiples of 3 for values of `x`.

eg. If `x = 6`, then `y = 4/3 xx 6 - 4 = 4` `rArr (6,4)`

If `x = 9`, then `y = 4/3 xx 9 - 4 = 8` `rArr (9,8)` and so on.