3 years ago

Help me!!! ASAP pls!!!!

Mathematics

1 answer:

solmaris [256]3 years ago

4 0

2x+7y=4

+(-2x-8y=-2)

------------------

0x-y=2

-y=2 (this is the result of adding the two equations)

But...

y=-2

2x+7(-2)=4

x=9

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