6.9-0.4x=3.3

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Solution for 6.9-0.4x=3.3 equation: 



6.9-0.4x=3.3

We move all terms to the left:

6.9-0.4x-(3.3)=0

We add all the numbers together, and all the variables

-0.4x+3.6=0

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

-0.4x=-3.6

x=-3.6/-0.4

x=+9

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