Add - 7mn+5 , 12 mn+2, 9mn-8, 2mn - 3
Answers
Answered by
1
Answer:
30mn+23
mark as brainliest pls
Answered by
2
Answer:
hope it helps you!!
Step-by-step explanation:
(-7mn+5)+(12mn+2)+(9mn-8)+(2mn-3)
= -7mn+5+12mn+2+9mn-8+2mn-3
= -7mn+12mn+9mn+2mn+5+2-8-3
= -7mn+23mn+7-11
=16mn-4
4(4mn-1)
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