15u+120=-225

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Solution for 15u+120=-225 equation: 



15u+120=-225

We move all terms to the left:

15u+120-(-225)=0

We add all the numbers together, and all the variables

15u+345=0

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

15u=-345

u=-345/15

u=-23

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