Question

Сделайте! 8класс................................

Answer 1

$1)\frac{3x}{7}-3+\frac{6x}{5}=2\\\\\frac{3x}{7}*35-3*35+\frac{6x}{5}*35=2*35\\\\15x-105+42x=70\\\\57x=175\\\\x=3\frac{4}{57} \\\\Otvet:\boxed{3\frac{4}{57}}$

$2)0,5(1\frac{1}{2}x-\frac{1}{6})=-1(3x-8,3)\\\\1\frac{1}{2}x-\frac{1}{6}=-2(3x-8,3)\\\\1\frac{1}{2}x-\frac{1}{6}=-6x+16,6\\\\1\frac{1}{2}x+6x=16,6+\frac{1}{6}\\\\7\frac{1}{2}x=16+\frac{3}{5}+\frac{1}{6}\\\\7\frac{1}{2}x=16+\frac{18+5}{30} \\\\7\frac{1}{2} x=16\frac{23}{30}\\\\\frac{15}{2}x=\frac{503}{30}\\\\x=\frac{503}{30}:\frac{15}{2}=\frac{503}{30}*\frac{2}{15}=\frac{503}{225}=2\frac{53}{225}\\\\Otvet:\boxed{2\frac{53}{225}}$

Answer 2

Решение и ответы во вложении