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m=-1+1/2.5
We move all terms to the left:
m-(-1+1/2.5)=0
We add all the numbers together, and all the variables
m-(1/2.5-1)=0
We get rid of parentheses
m+1-1/2.5=0
We multiply all the terms by the denominator
m*2.5-1+1*2.5=0
We add all the numbers together, and all the variables
m*2.5+1.5=0
Wy multiply elements
2.5m+1.5=0
We move all terms containing m to the left, all other terms to the right
2.5m=-1.5
m=-1.5/2.5
m=-1/1.6666666666667
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