Question

решите систему уравнение{ х-3у = 5, 2у-х=-7

Answer 1

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Answer 2

3(x-5)-2(x+4)=-5x+1 решите плиз

Answer 3

3х-15-2х-8=-5х+1.....3х-2х+5х=1+8+15....6х=24...х=4