-14+21+3x+9=7x+12-21

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Solution for -14+21+3x+9=7x+12-21 equation: 



-14+21+3x+9=7x+12-21

We move all terms to the left:

-14+21+3x+9-(7x+12-21)=0

We add all the numbers together, and all the variables

3x-(7x-9)-14+21+9=0

We add all the numbers together, and all the variables

3x-(7x-9)+16=0

We get rid of parentheses

3x-7x+9+16=0

We add all the numbers together, and all the variables

-4x+25=0

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

-4x=-25

x=-25/-4

x=6+1/4

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