d+(d+6)=-1

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Solution for d+(d+6)=-1 equation:


d+(d+6)=-1

We simplify the equation to the form, which is simple to understand 
d+(d+6)=-1

Remove unnecessary parentheses
+d+d+6=-1

We move all terms containing d to the left and all other terms to the right. 
+1d+1d=-1-6

We simplify left and right side of the equation. 
+2d=-7

We divide both sides of the equation by 2 to get d. 
d=-3.5

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