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7-k/5=10
We move all terms to the left:
7-k/5-(10)=0
We add all the numbers together, and all the variables
-k/5-3=0
We multiply all the terms by the denominator
-k-3*5=0
We add all the numbers together, and all the variables
-1k-15=0
We move all terms containing k to the left, all other terms to the right
-k=15
k=15/-1
k=-15
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