Ответы на вопрос:
{x + yz = 95 (1) {ху + z = 94 (2) (1) - (2) y(z - x) + x - z = 1 y(z - x) - (z - x) = 1 (z - x)(y - 1) = 1 1) (1)*(1) = 1 2) (-1)*(-1) = 1 1) {(z-x) = 1 => z = 1 +x {(y-1) = 1 => y = 2 { x + 2z = 95 => x + 2(1 + x) = 95 => 3x = 93 => x = 31 {2х + z = 94 => 2x + 1 +x = 94 => 3x = 93 => x = 31 z = 1 +x => 1 + 31 = 32 z = 32 x = 31; y = 2; z = 322) {(z-x) = -1 {(y-1) = -1 => y = 0 {x + 0*z = 95 (1) => x = 95 {х*0 + z = 94 (2) => y = 94 x = 95; y = 94; z = 0
1тонна 8 центнеров = 18 центнеров 4 тонны 200 кг = 420 центнера 1 тонна = 10 центнеров 1 центнер = 100 кг
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