6(2x+7)-13=21-9(x+1)

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Solution for 6(2x+7)-13=21-9(x+1) equation: 



6(2x+7)-13=21-9(x+1)

We move all terms to the left:

6(2x+7)-13-(21-9(x+1))=0

We multiply parentheses

12x-(21-9(x+1))+42-13=0



We calculate terms in parentheses: -(21-9(x+1)), so:

21-9(x+1)

determiningTheFunctionDomain
-9(x+1)+21

We multiply parentheses

-9x-9+21

We add all the numbers together, and all the variables

-9x+12

Back to the equation:

-(-9x+12)



We add all the numbers together, and all the variables

12x-(-9x+12)+29=0

We get rid of parentheses

12x+9x-12+29=0

We add all the numbers together, and all the variables

21x+17=0

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

21x=-17

x=-17/21

x=-17/21

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