Question

Use substitution to solve the following system of equations. Enter your answer as an ordered pair, like this example: (4, -5).

y=x-19
2x-y=27

Answer 1

y = x - 19 <-------- use this in the other equation.

2x - y = 27
2x - (x - 19) = 27
2x - x + 19 = 27
x + 19 = 27
x = 8

Don't forget to find y.

y = x - 19
= (8) - 19
= -11

So your answer is (8, -11)