4b+9=13

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Solution for 4b+9=13 equation: 



4b+9=13

We move all terms to the left:

4b+9-(13)=0

We add all the numbers together, and all the variables

4b-4=0

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

4b=4

b=4/4

b=1

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