2d-7=-9

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Solution for 2d-7=-9 equation: 



2d-7=-9

We move all terms to the left:

2d-7-(-9)=0

We add all the numbers together, and all the variables

2d+2=0

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

2d=-2

d=-2/2

d=-1

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