3(x-20)=15(x-20)

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Solution for 3(x-20)=15(x-20) equation: 



3(x-20)=15(x-20)

We move all terms to the left:

3(x-20)-(15(x-20))=0

We multiply parentheses

3x-(15(x-20))-60=0



We calculate terms in parentheses: -(15(x-20)), so:

15(x-20)

We multiply parentheses

15x-300

Back to the equation:

-(15x-300)



We get rid of parentheses

3x-15x+300-60=0

We add all the numbers together, and all the variables

-12x+240=0

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

-12x=-240

x=-240/-12

x=+20

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