x = 8
y = 3
x = 5y - 7
x + y + 1 = 12
Because we have a value for x, we can use it in the second equation to find the value of y.
5y - 7 + y + 1 = 12
Combine like terms
6y - 6 = 12
Add 6 to both sides.
6y = 18
Divide both sides by 6.
y = 3
Now that we have a value for y we can place it back in the equation to find the value of x.
x + 3 + 1 = 12
Subtract 4 from both sides.
x = 8
