6x-21+20x+6=15x+40-3x-1

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Solution for 6x-21+20x+6=15x+40-3x-1 equation: 



6x-21+20x+6=15x+40-3x-1

We move all terms to the left:

6x-21+20x+6-(15x+40-3x-1)=0

We add all the numbers together, and all the variables

6x+20x-(12x+39)-21+6=0

We add all the numbers together, and all the variables

26x-(12x+39)-15=0

We get rid of parentheses

26x-12x-39-15=0

We add all the numbers together, and all the variables

14x-54=0

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

14x=54

x=54/14

x=3+6/7

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