Question

Please help number 42

Answer 1

Answer:

All I know

Step-by-step explanation:All I know is that you have to distribute the top so 5{2k - 3} so that would be 10k-15 and then -3{k+4} would be -3k -12 hopefully this helps you out a littble bit so the top completely is 7k-27

Answer 2

Answer:

  41/4 = 10.25

Step-by-step explanation:

Put -2 where k is and do the arithmetic.

$\dfrac{5(2k-3)-3(k+4)}{3k+2}=\dfrac{5(2(-2)-3)-3(-2+4)}{3(-2)+2}\\\\=\dfrac{5(-4-3)-3(2)}{-6+2}=\dfrac{5(-7)-6}{-4}=\dfrac{-35-6}{-4}\\\\=\dfrac{41}{4}=10.25$