3u+40+2u=6u-30

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Solution for 3u+40+2u=6u-30 equation: 



3u+40+2u=6u-30

We move all terms to the left:

3u+40+2u-(6u-30)=0

We add all the numbers together, and all the variables

5u-(6u-30)+40=0

We get rid of parentheses

5u-6u+30+40=0

We add all the numbers together, and all the variables

-1u+70=0

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

-u=-70

u=-70/-1

u=+70

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