21x+7=5(2x-4)

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Solution for 21x+7=5(2x-4) equation: 



21x+7=5(2x-4)

We move all terms to the left:

21x+7-(5(2x-4))=0



We calculate terms in parentheses: -(5(2x-4)), so:

5(2x-4)

We multiply parentheses

10x-20

Back to the equation:

-(10x-20)



We get rid of parentheses

21x-10x+20+7=0

We add all the numbers together, and all the variables

11x+27=0

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

11x=-27

x=-27/11

x=-2+5/11

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