3 years ago

[y = 4x] [x + y = 5]

1 answer:

alexandr1967 [171]3 years ago

5 0

X=1, y=4

Substitute 4x in for y in the second equation and you get 5x=5. Divide out 5 and you get x=1. Then, you can plug 1 in for x into either equation and solve for y.

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