3(d+2)-12=d-2

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Solution for 3(d+2)-12=d-2 equation: 



3(d+2)-12=d-2

We move all terms to the left:

3(d+2)-12-(d-2)=0

We multiply parentheses

3d-(d-2)+6-12=0

We get rid of parentheses

3d-d+2+6-12=0

We add all the numbers together, and all the variables

2d-4=0

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

2d=4

d=4/2

d=2

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