3d+2d-30=-3+9d-15

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Solution for 3d+2d-30=-3+9d-15 equation: 



3d+2d-30=-3+9d-15

We move all terms to the left:

3d+2d-30-(-3+9d-15)=0

We add all the numbers together, and all the variables

3d+2d-(9d-18)-30=0

We add all the numbers together, and all the variables

5d-(9d-18)-30=0

We get rid of parentheses

5d-9d+18-30=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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