7-21(x+3)=13-15(2x-15)

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Solution for 7-21(x+3)=13-15(2x-15) equation: 



7-21(x+3)=13-15(2x-15)

We move all terms to the left:

7-21(x+3)-(13-15(2x-15))=0

We multiply parentheses

-21x-(13-15(2x-15))-63+7=0



We calculate terms in parentheses: -(13-15(2x-15)), so:

13-15(2x-15)

determiningTheFunctionDomain
-15(2x-15)+13

We multiply parentheses

-30x+225+13

We add all the numbers together, and all the variables

-30x+238

Back to the equation:

-(-30x+238)



We add all the numbers together, and all the variables

-21x-(-30x+238)-56=0

We get rid of parentheses

-21x+30x-238-56=0

We add all the numbers together, and all the variables

9x-294=0

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

9x=294

x=294/9

x=32+2/3

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