add 2mn,-5mn,7mn,-3mn
Answers
Answered by
2
Answer:
2mn + ( - 5mn ) + 7mn + ( - 3mn)
2mn - 5mn + 7mn - 3mn
2mn + 7mn - 5mn - 3mn
9mn - 8mn
= mn
Answered by
0
Answer:
may be answer is 1..........
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