# Answer to Question #25597 in Abstract Algebra for muireann

Question #25597

solve the simultaneous equation x+2y=12 and 3x-5y=3

Expert's answer

x+2y=12 and 3x-5y=3

x=12-2y from the first then we substitute obtained expression into the second equation 3*(12-2y)-5y=336-6y-5y=3

-11y=-33

y=3 then x=12-2*3=6

So the answer is x=6,y=3

x=12-2y from the first then we substitute obtained expression into the second equation 3*(12-2y)-5y=336-6y-5y=3

-11y=-33

y=3 then x=12-2*3=6

So the answer is x=6,y=3

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