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Alja [10]
3 years ago
15

PLS HELP WILL MARK BRAINLIEST TO THE BEST ANSWER !

Mathematics
2 answers:
Helen [10]3 years ago
6 0

Answer:

13mn

Step-by-step explanation:

(10mn-5m+3n)+(mn-5m-3n)+(mn+9m+4n)

8mn+(-8mn)+13mn

=13mn

that's the answer I think

tatyana61 [14]3 years ago
4 0

Answer:

https://www.mathpapa.com/algebra-calculator.html

Step-by-step explanation:

there easy

that link is an algebra calculator

just type ur expression or equation on it and it will solve it for you with step by step explanation

pls mark brainliest :)

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