3=10-2d

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Solution for 3=10-2d equation: 



3=10-2d

We move all terms to the left:

3-(10-2d)=0

We add all the numbers together, and all the variables

-(-2d+10)+3=0

We get rid of parentheses

2d-10+3=0

We add all the numbers together, and all the variables

2d-7=0

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

2d=7

d=7/2

d=3+1/2

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