5d+7=3d+9

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Solution for 5d+7=3d+9 equation: 



5d+7=3d+9

We move all terms to the left:

5d+7-(3d+9)=0

We get rid of parentheses

5d-3d-9+7=0

We add all the numbers together, and all the variables

2d-2=0

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

2d=2

d=2/2

d=1

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