3x+21-3=6(4x+7)

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Solution for 3x+21-3=6(4x+7) equation: 



3x+21-3=6(4x+7)

We move all terms to the left:

3x+21-3-(6(4x+7))=0

We add all the numbers together, and all the variables

3x-(6(4x+7))+18=0



We calculate terms in parentheses: -(6(4x+7)), so:

6(4x+7)

We multiply parentheses

24x+42

Back to the equation:

-(24x+42)



We get rid of parentheses

3x-24x-42+18=0

We add all the numbers together, and all the variables

-21x-24=0

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

-21x=24

x=24/-21

x=-1+1/7

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