SOLUTION: Solve the system of equations and enter the solution as an ordered pair. 3y = 4x + 7 5y = 4x + 25

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Solve the system of equations and enter the solution as an ordered pair. 3y = 4x + 7 5y = 4x + 25       Log On


   

Question 372542: Solve the system of equations and enter the solution as an ordered pair.
3y = 4x + 7
5y = 4x + 25
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.3y+=+4x+%2B+7+
2.5y+=+4x+%2B+25
Subtract eq. 1 from eq. 2,
5y-3y=4x-4x%2B25-7
2y=18
highlight%28y=9%29
Then use either equation to solve for x.
27=4x%2B7
4x=20
highlight%28x=5%29