(5x-15)=(2x-21)

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Solution for (5x-15)=(2x-21) equation: 



(5x-15)=(2x-21)

We move all terms to the left:

(5x-15)-((2x-21))=0

We get rid of parentheses

5x-((2x-21))-15=0



We calculate terms in parentheses: -((2x-21)), so:

(2x-21)

We get rid of parentheses

2x-21

Back to the equation:

-(2x-21)



We get rid of parentheses

5x-2x+21-15=0

We add all the numbers together, and all the variables

3x+6=0

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

3x=-6

x=-6/3

x=-2

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