8-7u=2u-4u-7u

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Solution for 8-7u=2u-4u-7u equation: 



8-7u=2u-4u-7u

We move all terms to the left:

8-7u-(2u-4u-7u)=0

We add all the numbers together, and all the variables

-7u-(-9u)+8=0

We get rid of parentheses

-7u+9u+8=0

We add all the numbers together, and all the variables

2u+8=0

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

2u=-8

u=-8/2

u=-4

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