Question

How do you solve `2y = 4x + 2` and `y + 3 = 2x`?

Answer 1

No solution

Explanation:

For one of the equations, isolate a variable to one side. I chose `y+3=2x` and isolated `y`.
`y+3=2x`
`y=2x-3`

Substitute this equation for `y` in the other equation and solve.
`2y=4x+2`
`2(2x-3)=4x+2`
`4x-6=4x`
`-6≠0`

This equation is untrue, which means there is no solution.