0.4x-0.9x-39=1

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Solution for 0.4x-0.9x-39=1 equation: 



0.4x-0.9x-39=1

We move all terms to the left:

0.4x-0.9x-39-(1)=0

We add all the numbers together, and all the variables

-0.5x-40=0

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

-0.5x=40

x=40/-0.5

x=-80

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