SOLUTION: Im struggling how to understand this solutio. Equation 1 is (x+y)(2/15)=2 2x+2y=30 2x+2y=30 Equation 2 is (x-y)(1/5)=2 X-y=10

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Question 1161274: Im struggling how to understand this solutio.
Equation 1 is (x+y)(2/15)=2
2x+2y=30
2x+2y=30
Equation 2 is (x-y)(1/5)=2
X-y=10
2x-2y= 20 why the solving comes up to this ( 2x-2y =20 )
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Im struggling how to understand this solutio.
Equation 1 is (x+y)(2/15)=2
2x+2y=30
2x+2y=30
Equation 2 is (x-y)(1/5)=2
X-y=10
2x-2y= 20 why the solving comes up to this ( 2x-2y =20 )
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The solving didn't come up with anything.
Ask a question that makes sense.

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(x-y)(1/5)=2
Multiply by 5
X-y=10
Multiply by 2 (for whatever reason)
---> 2x-2y= 20
why the solving comes up to this ( 2x-2y =20 )
QED