10.9+2b=18.9

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Solution for 10.9+2b=18.9 equation: 



10.9+2b=18.9

We move all terms to the left:

10.9+2b-(18.9)=0

We add all the numbers together, and all the variables

2b-8=0

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

2b=8

b=8/2

b=4

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