8m+7+5m+5=90

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Solution for 8m+7+5m+5=90 equation: 



8m+7+5m+5=90

We move all terms to the left:

8m+7+5m+5-(90)=0

We add all the numbers together, and all the variables

13m-78=0

We move all terms containing m to the left, all other terms to the right

13m=78

m=78/13

m=6

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