3a-2b-ab-(a-b+ab)+3ab+b-a simplify combining like terms

Answer:

3a - 2b - ab -(a -b +ab) + 3ab + b - a

= 3a - 2b - ab -a +b -ab + 3ab + b -a

= 3a - a - a -2b +b +b -ab - ab +3ab

= a + ab

Ans: a + ab.

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