Question

Решите ур-ие (1 $frac{5}{18}$ - 2 $frac{4}{27}$) *5,4х= 9 $frac{1}{2}$+2 $frac{1}{4}$

Answer 1

$left(1frac5{18}-2frac4{27}right)cdot5,4x=9frac12+2frac14\left(frac{23}{18}-frac{58}{27}right)cdot5frac4{10}x=frac{19}2+frac94\frac{23cdot3-58cdot2}{54}cdot5frac25x=frac{19cdot2+9}4\frac{69-116}{54}cdotfrac{27}5x=frac{38+9}9\-frac{47}{54}cdotfrac{27}5x=frac{47}9\-frac{47}{10}x=frac{47}9\x=-frac{47}9cdotfrac{10}{47}\x=-frac{10}9=-1frac19$