12u-u-4u-6u=20

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Solution for 12u-u-4u-6u=20 equation: 



12u-u-4u-6u=20

We move all terms to the left:

12u-u-4u-6u-(20)=0

We add all the numbers together, and all the variables

u-20=0

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

u=20

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