SOLUTION: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y). x + 7y = 33 3x - 2y = 7

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y). x + 7y = 33 3x - 2y = 7      Log On


   

Question 964622: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
x + 7y = 33
3x - 2y = 7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
From eq. 1,
x=33-7y
So,
3x=99-21y
Substitute into eq. 2,
99-21y-2y=7
-23y=-92
y=4
Then,
x=33-7%284%29
x=33-28
x=5
(5,4)