8=1.3m-2.1m

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Solution for 8=1.3m-2.1m equation: 



8=1.3m-2.1m

We move all terms to the left:

8-(1.3m-2.1m)=0

We add all the numbers together, and all the variables

-(-0.8m)+8=0

We get rid of parentheses

0.8m+8=0

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

0.8m=-8

m=-8/0.8

m=-10

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