13x-16-21x=-4(2x+4)

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Solution for 13x-16-21x=-4(2x+4) equation: 



13x-16-21x=-4(2x+4)

We move all terms to the left:

13x-16-21x-(-4(2x+4))=0

We add all the numbers together, and all the variables

-8x-(-4(2x+4))-16=0



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

-4(2x+4)

We multiply parentheses

-8x-16

Back to the equation:

-(-8x-16)



We get rid of parentheses

-8x+8x+16-16=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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