15+7u=8+8u

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Solution for 15+7u=8+8u equation: 



15+7u=8+8u

We move all terms to the left:

15+7u-(8+8u)=0

We add all the numbers together, and all the variables

7u-(8u+8)+15=0

We get rid of parentheses

7u-8u-8+15=0

We add all the numbers together, and all the variables

-1u+7=0

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

-u=-7

u=-7/-1

u=+7

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