7x+9+8x=(3+12)x-9+18

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Solution for 7x+9+8x=(3+12)x-9+18 equation: 



7x+9+8x=(3+12)x-9+18

We move all terms to the left:

7x+9+8x-((3+12)x-9+18)=0

We add all the numbers together, and all the variables

7x+8x-(15x-9+18)+9=0

We add all the numbers together, and all the variables

15x-(15x-9+18)+9=0

We get rid of parentheses

15x-15x+9-18+9=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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