6+15=13-4(2x+5)

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Solution for 6+15=13-4(2x+5) equation: 



6+15=13-4(2x+5)

We move all terms to the left:

6+15-(13-4(2x+5))=0

We add all the numbers together, and all the variables

-(13-4(2x+5))+21=0



We calculate terms in parentheses: -(13-4(2x+5)), so:

13-4(2x+5)

determiningTheFunctionDomain
-4(2x+5)+13

We multiply parentheses

-8x-20+13

We add all the numbers together, and all the variables

-8x-7

Back to the equation:

-(-8x-7)



We get rid of parentheses

8x+7+21=0

We add all the numbers together, and all the variables

8x+28=0

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

8x=-28

x=-28/8

x=-3+1/2

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