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25-7m=21.99
We move all terms to the left:
25-7m-(21.99)=0
We add all the numbers together, and all the variables
-7m+3.01=0
We move all terms containing m to the left, all other terms to the right
-7m=-3.01
m=-3.01/-7
m=2.980198019802/6.9306930693069
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