Question

5*(с+3):6=8*(10-с):6

Answer 1

$frac{5(c+3)}{6} = frac{8(10-c)}{6} \ 5(c+3)=8(10-c) \ 5c+15=80-8c \ 5c+8c=80-15 \ 13c=65 \ c=65:13 \ c=5$