2u+-4=-2

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Solution for 2u+-4=-2 equation: 



2u+-4=-2

We move all terms to the left:

2u+-4-(-2)=0

We add all the numbers together, and all the variables

2u-2=0

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

2u=2

u=2/2

u=1

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