-7-5d-1=4-9d

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Solution for -7-5d-1=4-9d equation: 



-7-5d-1=4-9d

We move all terms to the left:

-7-5d-1-(4-9d)=0

We add all the numbers together, and all the variables

-5d-(-9d+4)-7-1=0

We add all the numbers together, and all the variables

-5d-(-9d+4)-8=0

We get rid of parentheses

-5d+9d-4-8=0

We add all the numbers together, and all the variables

4d-12=0

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

4d=12

d=12/4

d=3

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