9d+8d+10d=7d-10

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Solution for 9d+8d+10d=7d-10 equation: 



9d+8d+10d=7d-10

We move all terms to the left:

9d+8d+10d-(7d-10)=0

We add all the numbers together, and all the variables

27d-(7d-10)=0

We get rid of parentheses

27d-7d+10=0

We add all the numbers together, and all the variables

20d+10=0

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

20d=-10

d=-10/20

d=-1/2

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