7x-12-4x=9+8x+4

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Solution for 7x-12-4x=9+8x+4 equation:



7x-12-4x=9+8x+4
We move all terms to the left:
7x-12-4x-(9+8x+4)=0
We add all the numbers together, and all the variables
7x-4x-(8x+13)-12=0
We add all the numbers together, and all the variables
3x-(8x+13)-12=0
We get rid of parentheses
3x-8x-13-12=0
We add all the numbers together, and all the variables
-5x-25=0
We move all terms containing x to the left, all other terms to the right
-5x=25
x=25/-5
x=-5

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