7d+6(2d+3)=278

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Solution for 7d+6(2d+3)=278 equation: 



7d+6(2d+3)=278

We move all terms to the left:

7d+6(2d+3)-(278)=0

We multiply parentheses

7d+12d+18-278=0

We add all the numbers together, and all the variables

19d-260=0

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

19d=260

d=260/19

d=13+13/19

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