7b+0.4=5.7

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Solution for 7b+0.4=5.7 equation: 



7b+0.4=5.7

We move all terms to the left:

7b+0.4-(5.7)=0

We add all the numbers together, and all the variables

7b-5.3=0

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

7b=5.3

b=5.3/7

b=4.07692307692/5.38461538462

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