1) 3х+у=2
у=2-3х
2) -2х-у=0
у=-2х
3) у - 2х = 5
у= 5+ 2х
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1) 3х+у=2
у=2-3х
2) -2х-у=0
у=-2х
3) у - 2х = 5
у= 5+ 2х