100(35-7x)=450(15+7x)

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Solution for 100(35-7x)=450(15+7x) equation: 



100(35-7x)=450(15+7x)

We move all terms to the left:

100(35-7x)-(450(15+7x))=0

We add all the numbers together, and all the variables

100(-7x+35)-(450(7x+15))=0

We multiply parentheses

-700x-(450(7x+15))+3500=0



We calculate terms in parentheses: -(450(7x+15)), so:

450(7x+15)

We multiply parentheses

3150x+6750

Back to the equation:

-(3150x+6750)



We get rid of parentheses

-700x-3150x-6750+3500=0

We add all the numbers together, and all the variables

-3850x-3250=0

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

-3850x=3250

x=3250/-3850

x=-65/77

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