-5d+7=-9-7d

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Solution for -5d+7=-9-7d equation: 



-5d+7=-9-7d

We move all terms to the left:

-5d+7-(-9-7d)=0

We add all the numbers together, and all the variables

-5d-(-7d-9)+7=0

We get rid of parentheses

-5d+7d+9+7=0

We add all the numbers together, and all the variables

2d+16=0

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

2d=-16

d=-16/2

d=-8

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