Question

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Заранее спасибо)

Answer 1

$left { {{x=3.5y} atop {4x-3y=22}} right. \ left { {{x=3.5y} atop {4*3.5x-3y=22}} right. \ left { {{x=3.5y} atop {11y=22}} right. \ left { {{x=3.5y} atop {y=2}} right. \ left { {{x=7} atop {y=2}} right.$