2k = 5k-30
Subtract 5k from both sides:
-3k = -30
Divide both sides by -3 to find the value of k remembering that a minus divided into a minus becomes a plus:
k = 10
Chat with our AI personalities
Well, honey, if you want to solve for k, just isolate the variable by subtracting 3 from both sides of the equation. That leaves you with 2k equals 8. Then, divide both sides by 2 to find that k equals 4. Math doesn't have to be a headache, darling.
35 + 2k = 9k subtract 2k from each side 35 + 2k - 2k = 9k - 2k 35 = 7k divide both sides integers by 7 35/7 = (7/7)k 5 = k check in original equation 35 + 2(5) = 9(5) 35 + 10 = 45 45 = 45 checks out
2k + 17 = 32k = -14k = -7
5k
Using the discriminant formula for a quadratic equation k has a value of 8/25 or maybe 0.