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
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
Using the discriminant formula for a quadratic equation k has a value of 8/25 or maybe 0.
5k
2K + Cl2 --> 2KCl
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 - 1 = 0 Add 1 to both sides: 2k = 1 Divide both sides by two: k = 0.5
2k + 17 = 32k = -14k = -7
k = 14/43
Using the discriminant formula for a quadratic equation k has a value of 8/25 or maybe 0.
The reaction equation is: 2K + Cl2 --> 2KCl
5k
2K + H2O ----> K2O + H2
2K + Cl2 --> 2KCl
k=-7
2k + 3 = 11(- 3 from both sides)2k = 8(divide both sides by 2)k = 4
Let even be of the form 2k and odd be of the form 2k+1. Then odd * even becomes 2k*2k+1, or 4k^2 +2k. This can be written as 2(k^2 + k), which is of the form 2k. Therefore, odd X even equals even.