4(d+1)+3=15

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Solution for 4(d+1)+3=15 equation: 



4(d+1)+3=15

We move all terms to the left:

4(d+1)+3-(15)=0

We add all the numbers together, and all the variables

4(d+1)-12=0

We multiply parentheses

4d+4-12=0

We add all the numbers together, and all the variables

4d-8=0

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

4d=8

d=8/4

d=2

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