Автор - olyaposnikova

Даю 18 баллов за решение: задания 11 на фото

Ответ

Автор - terekosmayev

x + y + z = 288 \ 4y = z \ 5x = y + z

z = 5x- y = 4y\  \ 5 x = 5y \ x = y \ x   + x + 4x = 288 \ x =  frac{288}{6}  = 48

y = 48 \ z = 4 times 48 = 192

192 - 48 = 144

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