20-2u=10-7u

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Solution for 20-2u=10-7u equation: 



20-2u=10-7u

We move all terms to the left:

20-2u-(10-7u)=0

We add all the numbers together, and all the variables

-2u-(-7u+10)+20=0

We get rid of parentheses

-2u+7u-10+20=0

We add all the numbers together, and all the variables

5u+10=0

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

5u=-10

u=-10/5

u=-2

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