Question

(7, 85x - 12, 4x) * (-1, 9/91) = -2, 11/12 - 1, 2/3

Answer 1

$(7,85x-12,4x)(-1frac{9}{91})=-2frac{11}{12}-1frac{2}{3}\-4,55x*(-frac{100}{91})=-frac{35}{12}-frac{5}{3}\4,55x*frac{100}{91}=-frac{35}{12}-frac{5}{3}\frac{455}{91}x=-frac{35}{12}-frac{20}{12}\5x=-frac{55}{12}\x=-frac{55}{12}:5=-frac{55}{12}*frac{1}{5}\x=-frac{11}{12}$