7d=-7+7d

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Solution for 7d=-7+7d equation: 



7d=-7+7d

We move all terms to the left:

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

We add all the numbers together, and all the variables

7d-(7d-7)=0

We get rid of parentheses

7d-7d+7=0

We add all the numbers together, and all the variables

7!=0

There is no solution for this equation

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