8x+6y-11=0 Если x=1
11x-13y+16=0 Если х=-5
8+6y-11=0
6y=-8+11
y=1/2
-55-13y+16=0
-13y=55-16
-13y=39
y=-3
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8+6y-11=0
6y=-8+11
y=1/2
-55-13y+16=0
-13y=55-16
-13y=39
y=-3