2u-40=7u

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Solution for 2u-40=7u equation: 



2u-40=7u

We move all terms to the left:

2u-40-(7u)=0

We add all the numbers together, and all the variables

-5u-40=0

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

-5u=40

u=40/-5

u=-8

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