-0.3x+0.8x-1=-4

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Solution for -0.3x+0.8x-1=-4 equation: 



-0.3x+0.8x-1=-4

We move all terms to the left:

-0.3x+0.8x-1-(-4)=0

We add all the numbers together, and all the variables

0.5x+3=0

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

0.5x=-3

x=-3/0.5

x=-6

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