8m-1-4m=-9

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Solution for 8m-1-4m=-9 equation:



8m-1-4m=-9
We move all terms to the left:
8m-1-4m-(-9)=0
We add all the numbers together, and all the variables
4m+8=0
We move all terms containing m to the left, all other terms to the right
4m=-8
m=-8/4
m=-2

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