20=7x+3-4x

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



20=7x+3-4x

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(3x+3)+20=0

We get rid of parentheses

-3x-3+20=0

We add all the numbers together, and all the variables

-3x+17=0

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

-3x=-17

x=-17/-3

x=5+2/3

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