5x-(6-4x)=21

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



5x-(6-4x)=21

We move all terms to the left:

5x-(6-4x)-(21)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

5x+4x-6-21=0

We add all the numbers together, and all the variables

9x-27=0

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

9x=27

x=27/9

x=3

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