2x+5y=-4*2
7x-2y=25*5
4x+10y=-8
35x-10y=125
39x=117
x=3
2*3+5y=-4
6+5y=-4
5y=-4-6
5y=-10
y=-2
Ответ: (3:-2)
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2x+5y=-4*2
7x-2y=25*5
4x+10y=-8
35x-10y=125
39x=117
x=3
2*3+5y=-4
6+5y=-4
5y=-4-6
5y=-10
y=-2
Ответ: (3:-2)