21-x-5=8(x+1)=

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Solution for 21-x-5=8(x+1)= equation: 



21-x-5=8(x+1)=

We move all terms to the left:

21-x-5-(8(x+1))=0

We add all the numbers together, and all the variables

-1x-(8(x+1))+16=0



We calculate terms in parentheses: -(8(x+1)), so:

8(x+1)

We multiply parentheses

8x+8

Back to the equation:

-(8x+8)



We get rid of parentheses

-1x-8x-8+16=0

We add all the numbers together, and all the variables

-9x+8=0

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

-9x=-8

x=-8/-9

x=8/9

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