Question

sum of a - b + ab , b + c - ab and c - a - ac is ​

Answer 1

hope it will be right. ......

Answer 2

$\tt \huge{\underline{ Question:}}$

$\bf{add \: \: : \: \: a - b + ab \: , \: b + c - ab \: \: and \: \: c - a - ac }$

$\tt \huge\red{\underline{ \underline{Answer :}}}$

$\bf{(a - b + ab) + (b + c - ab ) + ( c - a - ac )}$

$\bf{a - b + ab + b + c - ab + c - a - ac }$

$\bf{a - a - b + b + c + c + ab - ab - ac}$

$\bf{0 + 0 + 2c + 0 - ac}$

$\boxed{ \bf{2c - ac}}$

$\purple{ \large{ \tt{Hope \: \: this \: \: helps \: \: you \: !}}}$