SOLUTION: please help me solve using subsititution method 7x+5y=10 x=31-4y *solution is ordered pair*

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: please help me solve using subsititution method 7x+5y=10 x=31-4y *solution is ordered pair*      Log On


   

Question 223052: please help me solve using subsititution method
7x+5y=10
x=31-4y
*solution is ordered pair*
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
7x+5y=10
x=31-4y
-------------
7(31-4y)+5y=10
217-28y+5y=10
-23y=-207
y=9
----------------
x=31-4(9)
x=31-36
x=-5
---------------
(-5,9)