9-d=-3d-1

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Solution for 9-d=-3d-1 equation:



9-d=-3d-1
We move all terms to the left:
9-d-(-3d-1)=0
We add all the numbers together, and all the variables
-1d-(-3d-1)+9=0
We get rid of parentheses
-1d+3d+1+9=0
We add all the numbers together, and all the variables
2d+10=0
We move all terms containing d to the left, all other terms to the right
2d=-10
d=-10/2
d=-5

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