3(u+7)=-3(5u-1)+4u

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Solution for 3(u+7)=-3(5u-1)+4u equation: 



3(u+7)=-3(5u-1)+4u

We move all terms to the left:

3(u+7)-(-3(5u-1)+4u)=0

We multiply parentheses

3u-(-3(5u-1)+4u)+21=0



We calculate terms in parentheses: -(-3(5u-1)+4u), so:

-3(5u-1)+4u

We add all the numbers together, and all the variables

4u-3(5u-1)

We multiply parentheses

4u-15u+3

We add all the numbers together, and all the variables

-11u+3

Back to the equation:

-(-11u+3)



We get rid of parentheses

3u+11u-3+21=0

We add all the numbers together, and all the variables

14u+18=0

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

14u=-18

u=-18/14

u=-1+2/7

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