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X - 3y = -20 X - 5y = -40 Please help and show how you got to the answer
asked
Mar 9, 2018
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X - 3y = -20
X - 5y = -40
Please help and show how you got to the answer
Mathematics
middle-school
Wenxi Zeng
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Wenxi Zeng
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X=10 & Y=10.
Multiply the second equation by -1, it becomes (-X+5=40)
Add it to the first so that to eliminate X
You will get 2Y = 20 & Y = 10. Plug the value of Y in any of the 2 equation & you will get X = 10
Kishma
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Mar 10, 2018
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Kishma
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x=3y-20 sooo
(3y-20)-5y=-40
-2y-20=-40
-2y=-20
y=10 sooo
x-3(10)=-20
x-30=-20
x=10
so x and y both equal 10
Macron
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Mar 15, 2018
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Macron
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