8x+3=-(3-3x)+21

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Solution for 8x+3=-(3-3x)+21 equation: 



8x+3=-(3-3x)+21

We move all terms to the left:

8x+3-(-(3-3x)+21)=0

We add all the numbers together, and all the variables

8x-(-(-3x+3)+21)+3=0



We calculate terms in parentheses: -(-(-3x+3)+21), so:

-(-3x+3)+21

We get rid of parentheses

3x-3+21

We add all the numbers together, and all the variables

3x+18

Back to the equation:

-(3x+18)



We get rid of parentheses

8x-3x-18+3=0

We add all the numbers together, and all the variables

5x-15=0

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

5x=15

x=15/5

x=3

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