Question

What is the solution of the system? Use substitution.
y= 4x + 4
y = 5x

Answer 1

x = 4, y = 20

Explanation:

Substitute y = 5x into y = 4x + 4.

This would be:

`5x = 4x+4`

subtract 4x from both sides

`x=4`

Then, substitute x = 4 into the equation y = 5x

`y = 5 * 4\\y = 20`