12+3.4+87.5+15=d

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Solution for 12+3.4+87.5+15=d equation: 



12+3.4+87.5+15=d

We move all terms to the left:

12+3.4+87.5+15-(d)=0

We add all the numbers together, and all the variables

-1d+117.9=0

We move all terms containing d to the left, all other terms to the right

-d=-117.9

d=-117.9/-1

d=117+0.90000000000001/1

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