SOLUTION: Solve the system 3x+4y=23 2x-5y=23

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Question 101140: Solve the system
3x+4y=23
2x-5y=23
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
3x+4y=23 multiply by 5:
15x+20y=115 2x-5y=23 multiply by 4
8x-20y=92 now add
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23x=207
x=207/23
x=9 answer.
3*9+4y=23
27+4y=23
4y=23-27
y=-4/4
y=-1 answer.
proof
2*9-5-1=23
18+5=23
23=23