7x-21+5=20-4x-3x

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Solution for 7x-21+5=20-4x-3x equation: 



7x-21+5=20-4x-3x

We move all terms to the left:

7x-21+5-(20-4x-3x)=0

We add all the numbers together, and all the variables

7x-(-7x+20)-21+5=0

We add all the numbers together, and all the variables

7x-(-7x+20)-16=0

We get rid of parentheses

7x+7x-20-16=0

We add all the numbers together, and all the variables

14x-36=0

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

14x=36

x=36/14

x=2+4/7

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