SOLUTION: check the solution algebraically.... 2x+y=13 5x-2y=1

Algebra ->  Linear-equations -> SOLUTION: check the solution algebraically.... 2x+y=13 5x-2y=1      Log On


   

Question 351735: check the solution algebraically....
2x+y=13
5x-2y=1
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
Multiply the first equation by 2:
2x+y=13
5x-2y=1
Which will give us:
4x+2y=26
Now add this to the second equation to get:
9x=27
Divide by 9:
x=3
Now we can plug this to get y:
y=7
Make sense?
RJ
www.math-unlock.com