7=b+21/8

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Solution for 7=b+21/8 equation: 



7=b+21/8

We move all terms to the left:

7-(b+21/8)=0

We add all the numbers together, and all the variables

-(+b+21/8)+7=0

We get rid of parentheses

-b+7-21/8=0

We multiply all the terms by the denominator


-b*8-21+7*8=0

We add all the numbers together, and all the variables

-b*8+35=0

Wy multiply elements

-8b+35=0

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

-8b=-35

b=-35/-8

b=4+3/8

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