-2a-2b=-8
2a+7b=2
5b=-6
b=1.2
a=4-1.2
a=2.8
(1.8; 1.2)
a) I на 2
b) I на 2
c) I на 3
а II на 5
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-2a-2b=-8
2a+7b=2
5b=-6
b=1.2
a=4-1.2
a=2.8
(1.8; 1.2)
a) I на 2
b) I на 2
c) I на 3
а II на 5