-20u-6u+3u+4u=20

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Solution for -20u-6u+3u+4u=20 equation: 



-20u-6u+3u+4u=20

We move all terms to the left:

-20u-6u+3u+4u-(20)=0

We add all the numbers together, and all the variables

-19u-20=0

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

-19u=20

u=20/-19

u=-1+1/19

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