Question

5,3х+ 7+ 3,5х+ 9 при х= 5/6
Помогите

Answer 1

5,3х+ 7+ 3,5х+ 9=8,8x+16

$8,8* frac{5}{6} +16= frac{88}{10} * frac{5}{6} +16= frac{44}{6} +16=7 frac{1}{3}+16=23 frac{1}{3}$