4d+9=20

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Solution for 4d+9=20 equation: 



4d+9=20

We move all terms to the left:

4d+9-(20)=0

We add all the numbers together, and all the variables

4d-11=0

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

4d=11

d=11/4

d=2+3/4

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