3=2(5-b)

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Solution for 3=2(5-b) equation: 



3=2(5-b)

We move all terms to the left:

3-(2(5-b))=0

We add all the numbers together, and all the variables

-(2(-1b+5))+3=0



We calculate terms in parentheses: -(2(-1b+5)), so:

2(-1b+5)

We multiply parentheses

-2b+10

Back to the equation:

-(-2b+10)



We get rid of parentheses

2b-10+3=0

We add all the numbers together, and all the variables

2b-7=0

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

2b=7

b=7/2

b=3+1/2

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