12.4-2.8x-8.4=-12.8

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Solution for 12.4-2.8x-8.4=-12.8 equation: 



12.4-2.8x-8.4=-12.8

We move all terms to the left:

12.4-2.8x-8.4-(-12.8)=0

We add all the numbers together, and all the variables

-2.8x+16.8=0

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

-2.8x=-16.8

x=-16.8/-2.8

x=6+3.5527136788005E-15/2.8

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