adziam21
adziam21
06-10-2016
Mathematics
contestada
Solve the system of equations -2x+y=5 x-3y=-30
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jacquiblanco99
jacquiblanco99
06-10-2016
-2x+y=5
x-3y=-30 so you can multiply the bottom equation by 2 you'll get 2x-6y=-60
-2x+y=5
2x-6y=-60 And subtract the equations. You'll get -5y=-55 y=11. Plug it in to one of the original equations. -2x+(11)=5
-2x=-6 so x=3
y=11 and x=3
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