20+4u=-20+u-20

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



20+4u=-20+u-20

We move all terms to the left:

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

We add all the numbers together, and all the variables

4u-(u-40)+20=0

We get rid of parentheses

4u-u+40+20=0

We add all the numbers together, and all the variables

3u+60=0

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

3u=-60

u=-60/3

u=-20

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