3d-9=-15.9

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Solution for 3d-9=-15.9 equation: 



3d-9=-15.9

We move all terms to the left:

3d-9-(-15.9)=0

We add all the numbers together, and all the variables

3d+6.9=0

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

3d=-6.9

d=-6.9/3

d=-2+0.9/3

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