7(7+2d)=49

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Solution for 7(7+2d)=49 equation: 



7(7+2d)=49

We move all terms to the left:

7(7+2d)-(49)=0

We add all the numbers together, and all the variables

7(2d+7)-49=0

We multiply parentheses

14d+49-49=0

We add all the numbers together, and all the variables

14d=0

d=0/14

d=0

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