6x+21=9(5-4x)+8

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Solution for 6x+21=9(5-4x)+8 equation: 



6x+21=9(5-4x)+8

We move all terms to the left:

6x+21-(9(5-4x)+8)=0

We add all the numbers together, and all the variables

6x-(9(-4x+5)+8)+21=0



We calculate terms in parentheses: -(9(-4x+5)+8), so:

9(-4x+5)+8

We multiply parentheses

-36x+45+8

We add all the numbers together, and all the variables

-36x+53

Back to the equation:

-(-36x+53)



We get rid of parentheses

6x+36x-53+21=0

We add all the numbers together, and all the variables

42x-32=0

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

42x=32

x=32/42

x=16/21

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