4(5.1-2.3)=20.4-2.3m

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Solution for 4(5.1-2.3)=20.4-2.3m equation: 



4(5.1-2.3)=20.4-2.3m

We move all terms to the left:

4(5.1-2.3)-(20.4-2.3m)=0

We add all the numbers together, and all the variables

-(-2.3m+20.4)+4(2.8)=0

We add all the numbers together, and all the variables

-(-2.3m+20.4)+11.2=0

We get rid of parentheses

2.3m-20.4+11.2=0

We add all the numbers together, and all the variables

2.3m-9.2=0

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

2.3m=9.2

m=9.2/2.3

m=4

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