SOLUTION: Eq 1 is (×+y)(2/15)= 2 2x+2y=30 2x+2y=30 Eq 2 is (x-y)(1/5)=2 x-y=10 2x-2y=20 why the solution comes up to this ( 2x-2y=20 ) THANK YOU!

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Question 1161275: Eq 1 is (×+y)(2/15)= 2
2x+2y=30
2x+2y=30
Eq 2 is (x-y)(1/5)=2
x-y=10
2x-2y=20 why the solution comes up to this ( 2x-2y=20 ) THANK YOU!
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