Question

How do you solve the system x=3 and 2y + x =3?

Answer 1

You can substitute (=replace) the value of `x` in the other equation

Explanation:

`2y+x=3->2y+3=3`

Now substract `3` on both sides:
`2y=0->y=0`

Complete answer: `x=3 and y=0`