2.1x+0.8x=-3

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Solution for 2.1x+0.8x=-3 equation: 



2.1x+0.8x=-3

We move all terms to the left:

2.1x+0.8x-(-3)=0

We add all the numbers together, and all the variables

2.9x+3=0

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

2.9x=-3

x=-3/2.9

x=-1+0.1/2.9

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