15(21)=5(5+x)

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Solution for 15(21)=5(5+x) equation: 



15(21)=5(5+x)

We move all terms to the left:

15(21)-(5(5+x))=0

We add all the numbers together, and all the variables

-(5(x+5))+1521=0



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

5(x+5)

We multiply parentheses

5x+25

Back to the equation:

-(5x+25)



We get rid of parentheses

-5x-25+1521=0

We add all the numbers together, and all the variables

-5x+1496=0

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

-5x=-1496

x=-1496/-5

x=299+1/5

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