.5x+8.4x=-1

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Solution for .5x+8.4x=-1 equation: 



.5x+8.4x=-1

We move all terms to the left:

.5x+8.4x-(-1)=0

We add all the numbers together, and all the variables

8.9x+1=0

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

8.9x=-1

x=-1/8.9

x=-1/8.9

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