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9 - 2k - 3 = k Add 2k to both sides: 9 - 3 = k + 2k Combine like terms: 6 = 3k Divide both sides by 3: 2 = k
3k-1=k+2 2k=3 k=3/2=1.5
Oh, dude, 2k plus k is like adding two of your favorite snacks plus one more - it's just 3k. So, if k represents a candy bar, then 2k plus k equals 3 candy bars. Easy peasy, right?
They are 3k/6k and 2k/6k where k is any non-zero integer.
x = 3