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4.9m-3.2m-13=2.64
We move all terms to the left:
4.9m-3.2m-13-(2.64)=0
We add all the numbers together, and all the variables
1.7m-15.64=0
We move all terms containing m to the left, all other terms to the right
1.7m=15.64
m=15.64/1.7
m=9+0.34/1.7
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