Question

помогите решить
х=15х/100+12/17×(х-15х/100)+12/17×(х-15х/100)-70

Answer 1

$x= frac{15x}{100}+ frac{12}{17}cdot (x- frac{15x}{100}) + frac{12}{17}cdot (x- frac{15x}{100}) -70 \ \ x= frac{15x}{100}+ frac{12}{17}cdot ( frac{85x}{100}) + frac{12}{17}cdot ( frac{85x}{100}) -70 \ \ x= frac{15x}{100}+ frac{60x}{100} + frac{60x}{100} -70$

$\ \ x= frac{135x}{100} -70 \ \ - frac{35x}{100}=-70 \ \ x=200$