3x-21=-2(x+8)

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Solution for 3x-21=-2(x+8) equation: 



3x-21=-2(x+8)

We move all terms to the left:

3x-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

3x+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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