-x+12-x=3

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Solution for -x+12-x=3 equation:



-x+12-x=3
We move all terms to the left:
-x+12-x-(3)=0
We add all the numbers together, and all the variables
-2x+9=0
We move all terms containing x to the left, all other terms to the right
-2x=-9
x=-9/-2
x=4+1/2

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