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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x-(4x+16)+7=0

We get rid of parentheses

7x-4x-16+7=0

We add all the numbers together, and all the variables

3x-9=0

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

3x=9

x=9/3

x=3

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