320+12m=278

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Solution for 320+12m=278 equation: 



320+12m=278

We move all terms to the left:

320+12m-(278)=0

We add all the numbers together, and all the variables

12m+42=0

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

12m=-42

m=-42/12

m=-3+1/2

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