Question

Помогите решить ур-я.

Answer 1

$frac{5x-7}{6}- frac{x+2}{7} =2 \ 7(5x-7)-6(x+2)=84 \ 35x-49-6x-12=84 \ 29x=145 \ x=5$

$frac{14-x}{4}+ frac{3x+1}{5}=3 \ 5(14-x)+4(3x+1)=60 \ 70-5x+12x+4=60 \ 7x=-14 \ x=-2$