7d+20=-71

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Solution for 7d+20=-71 equation:



7d+20=-71
We move all terms to the left:
7d+20-(-71)=0
We add all the numbers together, and all the variables
7d+91=0
We move all terms containing d to the left, all other terms to the right
7d=-91
d=-91/7
d=-13

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