How do i solve this by using substitution

To solve this using substitution you use what is given to you.

You have both the x and y, however you can choose which one you want to use.

If you choose to use y, then you’ll input the y equation into the x formula

x = 10 -2x -4

Then solve and continue as normal.

If you were to choose x, do the opposite.

y = 10 - 2(y - 4)

Hope this helps!

Ithink you're supposed to multiply 12.50 which is how much he makes per hour and then multiply it by each number then add whats left togrther and there's your answer