7(7d+9)=14

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Solution for 7(7d+9)=14 equation: 



7(7d+9)=14

We move all terms to the left:

7(7d+9)-(14)=0

We multiply parentheses

49d+63-14=0

We add all the numbers together, and all the variables

49d+49=0

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

49d=-49

d=-49/49

d=-1

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