СРОЧНО ДВЕ СИСТЕМЫ УРАВНЕНИЙ 85БАЛЛОВ 9 КЛАСС!

1) 4(x-y)^2+7(x-y)=15
{
2x+5y=1

2) (x-y)^2+2x=35+2y
{
(x+y)^2+2y=3-2x
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