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7.8-4.9-5.4m=2.3
We move all terms to the left:
7.8-4.9-5.4m-(2.3)=0
We add all the numbers together, and all the variables
-5.4m+0.6=0
We move all terms containing m to the left, all other terms to the right
-5.4m=-0.6
m=-0.6/-5.4
m=0.6/5.4
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