4(d+5)-2(d+6)=20

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Solution for 4(d+5)-2(d+6)=20 equation: 



4(d+5)-2(d+6)=20

We move all terms to the left:

4(d+5)-2(d+6)-(20)=0

We multiply parentheses

4d-2d+20-12-20=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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