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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x-(4x+18)-3=0

We get rid of parentheses

7x-4x-18-3=0

We add all the numbers together, and all the variables

3x-21=0

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

3x=21

x=21/3

x=7

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