Question

What is
y=x+1
y=x4+7

Answer 1

(-2,-1)

Explanation:

Assuming you mean 4x instead of
`x_4` or
`x^4`:

`y=x+1`

`y=4x+7`

We are already given the value of y so plug it into the second equation. Lets use substitution to solve this system of linear equations.

`x+1=4x+7`

Subtract 1 on both sides

`x=4x+6`

Subtract 4x on both sides

`-3x=6`

Divide by -3

`x=-2`

We now have the x coordinate, plug it into the other equation:

`y=-2+1`

`y=-1`

Our ordered pair is (-2,-1)