Verified answer

8m+6 - 2n + 5=8m-2n+11

9a-6 + 11b - 3=9a+11b-9

3y * (5x +11)=3y5x+33y

(7z - 1) : (z + 3)

8м+6-2п+5=8м-2п+11

9а-6+11б-3=9а+11б-9

3у*(5х+11)=3у5х+33у

(7z-1):(z+3)