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-10-0.75k=7
We move all terms to the left:
-10-0.75k-(7)=0
We add all the numbers together, and all the variables
-0.75k-17=0
We move all terms containing k to the left, all other terms to the right
-0.75k=17
k=17/-0.75
k=-22+0.5/0.75
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