-4(x+4)+21=9-5x

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Solution for -4(x+4)+21=9-5x equation: 



-4(x+4)+21=9-5x

We move all terms to the left:

-4(x+4)+21-(9-5x)=0

We add all the numbers together, and all the variables

-4(x+4)-(-5x+9)+21=0

We multiply parentheses

-4x-(-5x+9)-16+21=0

We get rid of parentheses

-4x+5x-9-16+21=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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