Нужна помощь. x+y x - y 1 --------------=-----2 3 6 x - y x+y 13 -----+-------= ----------4 3 12

помощь (x+y)/2 - (x-y)/3 = 1/6 3(x+y) - 2(x-y) = 1 3x+3y-2x+2y = 1 x+5y=1 (x-y)/4 + (x+y)/3 = 13/12 3(x-y) + 4(x+y) = 13 3x-3y+4x+4y = 13 7x+y = 13 x+5y=1 7x+y=13 7x+35y=7 7x+y = 13 - ------------- 34y = -6 y=-3/17 x+5y=1 7x+y=13 x+5y=1 35x+5y=65 - ------------- 34x = 64 x = 32/17