-15+21=2(x+2)

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



-15+21=2(x+2)

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(2(x+2))+6=0



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

2(x+2)

We multiply parentheses

2x+4

Back to the equation:

-(2x+4)



We get rid of parentheses

-2x-4+6=0

We add all the numbers together, and all the variables

-2x+2=0

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

-2x=-2

x=-2/-2

x=1

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