SOLUTION: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11       Log On


   

Question 49978This question is from textbook Beginning Algebra
: Solve the system by addition.
5x – 3y = 13
4x – 3y = 11
 This question is from textbook Beginning Algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
1st: 5x – 3y = 13
2nd: 4x – 3y = 11
Multiply 1st by -1 to get:
3rd: -5x+3y=-13
4th: 4x-3y=11
Add 3rd and 4th to get:
-x=-2
x=2
Substitute into 1st to get:
5(2)-3y=13
-3y=3
y=-1
Solution: x=-2, y=-1
Cheers,
Stan H.