u/7+9=-2.1

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Solution for u/7+9=-2.1 equation: 



u/7+9=-2.1

We move all terms to the left:

u/7+9-(-2.1)=0

We add all the numbers together, and all the variables

u/7+11.1=0

We multiply all the terms by the denominator


u+(11.1)*7=0

We add all the numbers together, and all the variables

u+77.7=0

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

u=-77.7

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