-8.1=1.3m-2.1m

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Solution for -8.1=1.3m-2.1m equation: 



-8.1=1.3m-2.1m

We move all terms to the left:

-8.1-(1.3m-2.1m)=0

We add all the numbers together, and all the variables

-(-0.8m)-8.1=0

We get rid of parentheses

0.8m-8.1=0

We move all terms containing m to the left, all other terms to the right

0.8m=8.1

m=8.1/0.8

m=10+0.1/0.8

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