12=3.4x-5.4x-x=0

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Solution for 12=3.4x-5.4x-x=0 equation:



12=3.4x-5.4x-x=0
We move all terms to the left:
12-(3.4x-5.4x-x)=0
We add all the numbers together, and all the variables
-(-3x)+12=0
We get rid of parentheses
3x+12=0
We move all terms containing x to the left, all other terms to the right
3x=-12
x=-12/3
x=-4

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