4х-5у=1
2х-3у=2
х=1+1.5у
х=1+1.5(-3)
х=1-4.5
х=-3,5
4(1+1.5у)-5у=1
4+6у-5у=1
у=-3
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Verified answer
4х-5у=1
2х-3у=2
х=1+1.5у
х=1+1.5(-3)
х=1-4.5
х=-3,5
4(1+1.5у)-5у=1
4+6у-5у=1
у=-3