Question

So I have to find the value of y by using substitution and my teacher gave me this problem?

x=y and x+2y=3

Answer 1

`y=1` (and `x=1`)

Explanation:

Substitue `y` in for `x` in the second equation since `y` and `x` are equal:

`y+2y=3`

`3y=3`

`y=1`