6u+(u+20)+(u+20)=180

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Solution for 6u+(u+20)+(u+20)=180 equation: 



6u+(u+20)+(u+20)=180

We move all terms to the left:

6u+(u+20)+(u+20)-(180)=0

We get rid of parentheses

6u+u+u+20+20-180=0

We add all the numbers together, and all the variables

8u-140=0

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

8u=140

u=140/8

u=17+1/2

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