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87k=8-56
We move all terms to the left:
87k-(8-56)=0
We add all the numbers together, and all the variables
87k-(-48)=0
We add all the numbers together, and all the variables
87k+48=0
We move all terms containing k to the left, all other terms to the right
87k=-48
k=-48/87
k=-16/29
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