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7(9+k)=844
We move all terms to the left:
7(9+k)-(844)=0
We add all the numbers together, and all the variables
7(k+9)-844=0
We multiply parentheses
7k+63-844=0
We add all the numbers together, and all the variables
7k-781=0
We move all terms containing k to the left, all other terms to the right
7k=781
k=781/7
k=111+4/7
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