0.9+3=x

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Solution for 0.9+3=x equation: 



0.9+3=x

We move all terms to the left:

0.9+3-(x)=0

We add all the numbers together, and all the variables

-1x+3.9=0

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

-x=-3.9

x=-3.9/-1

x=3+0.9/1

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