Need help please! thanks!

1 answer:

6 0

x + y = 4(1 + y) + y = 4 1 + 2y = 4 1 - 1 + 2y = 4 2y = 4 y = 2

-x = -1 + y-x = -1 +2
-x = 1
.... that's as far I can go... sorry

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