Пжжжжж срочного, прошу вас

Question

Пжжжжж срочного, прошу вас

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Answer 1

X+y = 7, y=7-x
2x-y = 2

x+y = 7
2(7-x) = 2

x+y = 7
14 - 2x = 2

x+y = 7
-2x = -12

x+y = 7
x=6

x=6
y=1