Step-by-step explanation:
Here you go mate
Step 1
8m+4n+7m-2n  Equation/Question
Step 2
8m+4n+7m-2n  Simplify
8m+4n+7m-2n
Step 3
8m+4n+7m-2n  Combine terms
(8m+7m)+(4n+-2n)
Step 4
(8m+7m)+(4n+-2n) Â Add them
answer
15m+2n
Hope this helps
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step-by-step explanation:
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