If you distribute -4 through (5k-7), it equals -20k + 28. Then put on the other -2k on that side of the equals sign and you should have -22k + 28 = -2(9k+5) Then you need to distribute -2 through (9k+5) which equals -18k - 10. You then should have -22k+28=-18k-10. Add 22k to both sides to cancel it out, then you should have 28=4k-10. Add 10 to both sides to get the 4k by itself, which will be 38=4k, then divide both sides by 4 to get k by itself. 38/4 = 19/2. k = 19/2
while excluding 0, the product and quotient is positive if operating between same sign, otherwise if we operating different sign will resulted negative.
20 plus 24
Divided by 15
Which gets you to
44 over 15 or 2 wholes and 14 over 15
Answer:
well the first one is x^3 y^2 z 7root x^2 z
