To simplify the expression 5k + 7 + 3k, first combine like terms by adding the coefficients of the k terms: 5k + 3k = 8k. Then, add the constant term: 8k + 7 = 8k + 7. So, the simplified expression is 8k + 7.
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The K stands for thousand. So 5k is 5,000 and 7 3K is either 73,000 or 7,000 and 3,000.
(5k3 - 3k + 7) - (-2k3 + k2 - 9) = 7k3 - k2 - 3k + 16
It is: 4k-10+7-7k combines to -3k-3
3k-5=7k+73k-7k=7+5-4k=12k=-3
7+2n