0.5x+0.4x-0.8=-1

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Solution for 0.5x+0.4x-0.8=-1 equation: 



0.5x+0.4x-0.8=-1

We move all terms to the left:

0.5x+0.4x-0.8-(-1)=0

We add all the numbers together, and all the variables

0.9x+0.2=0

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

0.9x=-0.2

x=-0.2/0.9

x=-0.2/0.9

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