SOLUTION: Solve the system by addition. 5x � 4y = �5 x � 2y = �7

Question 99918: Solve the system by addition.
5x � 4y = �5
x � 2y = �7

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve the system by addition.
1st: 5x � 4y = �5
2nd: x � 2y = �7
-------------
Multiply 2nd by 2 to get:
3rd: 2x-4y=-14
Subtract 3rd from 1st to get:
3x=9
x=3
----------
Substitute into x-2y=-7 to solve for y:
3-2y=-7
2y = 10
y = 5
---------------
Solution: x=3 ; y=5
=============================
Cheers,
Stan H.

RELATED QUESTIONS
Solve the system by addition 5x-4y=-5 x-2y=-7 Please help solve... (answered by checkley75)

Solve the system by addition. 5x-4y=-5... (answered by pvaka)

Solve the system by addition: 5x-4y=-5... (answered by checkley75)

Solve the system by addition. 5x � 4y = �5 x � 2y = �7 (answered by jim_thompson5910,checkley75)

Solve the system by addition. 5x � 4y = �5 x � 2y = �7 (answered by checkley71)

How would solve this system by addition? 5x - 4y = -5 x - 2y =... (answered by checkley71)

How would I solve this system by addition: 5x - 4y = -5, x - 2y =... (answered by checkley71)

How would I solve this system by addition: 5x - 4y = -5 x - 2y =... (answered by checkley71)

I need your help! Solve the system by addition: 5x-4y= -5 x-2=... (answered by stanbon)