9x+21x-6=6(5x+7)

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Solution for 9x+21x-6=6(5x+7) equation: 



9x+21x-6=6(5x+7)

We move all terms to the left:

9x+21x-6-(6(5x+7))=0

We add all the numbers together, and all the variables

30x-(6(5x+7))-6=0



We calculate terms in parentheses: -(6(5x+7)), so:

6(5x+7)

We multiply parentheses

30x+42

Back to the equation:

-(30x+42)



We get rid of parentheses

30x-30x-42-6=0

We add all the numbers together, and all the variables

-48!=0

There is no solution for this equation

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