12.2u-19.7u+19.82=(-7.4u)+19.85

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Solution for 12.2u-19.7u+19.82=(-7.4u)+19.85 equation: 



12.2u-19.7u+19.82=(-7.4u)+19.85

We move all terms to the left:

12.2u-19.7u+19.82-((-7.4u)+19.85)=0

We add all the numbers together, and all the variables

-7.5u-((-7.4u)+19.85)+19.82=0



We calculate terms in parentheses: -((-7.4u)+19.85), so:

(-7.4u)+19.85

We get rid of parentheses

-7.4u+19.85

Back to the equation:

-(-7.4u+19.85)



We get rid of parentheses

-7.5u+7.4u-19.85+19.82=0

We add all the numbers together, and all the variables

-0.1u-0.030000000000001=0

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

-0.1u=0.030000000000001

u=0.030000000000001/-0.1

u=-0.030000000000001/0.1

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