7(u-4)+7u=28

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Solution for 7(u-4)+7u=28 equation: 



7(u-4)+7u=28

We move all terms to the left:

7(u-4)+7u-(28)=0

We add all the numbers together, and all the variables

7u+7(u-4)-28=0

We multiply parentheses

7u+7u-28-28=0

We add all the numbers together, and all the variables

14u-56=0

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

14u=56

u=56/14

u=4

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