Question

39-8b-5a+10b ПОМОГИТЕ РЕШИТЬ !!!!!

Answer 1

$39-8b-5a+10b=underline{10b}-underline{8b}-5a+39= 2b-5a+39$

Answer 2

$39-8b-5a+10b= \ =-8b+10b-5a+39= \ =2b-5a+39$