8u-(-18)=42

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Solution for 8u-(-18)=42 equation: 



8u-(-18)=42

We move all terms to the left:

8u-(-18)-(42)=0

determiningTheFunctionDomain
8u-42-(-18)=0

We add all the numbers together, and all the variables

8u-24=0

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

8u=24

u=24/8

u=3

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