Answer:
k = 3
Explanation:
4.5 + 1.5k = 18 - 3k
Add 3k to both sides.
4.5 + 4.5k = 18
Subtract 4.5 from both sides.
4.5k = 13.5
Divide both sides by 4.5
=> 4.5 + 1.5 k = 18 - 3k
=> 1.5 k + 3k = 18 - 4.5
=> 4.5 k = 13.5
Dividing both sides by 4.5
=> k = 3
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