9.9-4.2x=-13.2

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Solution for 9.9-4.2x=-13.2 equation: 



9.9-4.2x=-13.2

We move all terms to the left:

9.9-4.2x-(-13.2)=0

We add all the numbers together, and all the variables

-4.2x+23.1=0

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

-4.2x=-23.1

x=-23.1/-4.2

x=5+1/2

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