7x-21=2(x-8)

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Solution for 7x-21=2(x-8) equation: 



7x-21=2(x-8)

We move all terms to the left:

7x-21-(2(x-8))=0



We calculate terms in parentheses: -(2(x-8)), so:

2(x-8)

We multiply parentheses

2x-16

Back to the equation:

-(2x-16)



We get rid of parentheses

7x-2x+16-21=0

We add all the numbers together, and all the variables

5x-5=0

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

5x=5

x=5/5

x=1

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