3d+19=7+d

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Solution for 3d+19=7+d equation: 



3d+19=7+d

We move all terms to the left:

3d+19-(7+d)=0

We add all the numbers together, and all the variables

3d-(d+7)+19=0

We get rid of parentheses

3d-d-7+19=0

We add all the numbers together, and all the variables

2d+12=0

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

2d=-12

d=-12/2

d=-6

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