4.2=2u-2.2

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Solution for 4.2=2u-2.2 equation: 



4.2=2u-2.2

We move all terms to the left:

4.2-(2u-2.2)=0

We get rid of parentheses

-2u+2.2+4.2=0

We add all the numbers together, and all the variables

-2u+6.4=0

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

-2u=-6.4

u=-6.4/-2

u=3+0.4/2

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