Respuesta :

Answer:

  k = 3.70

Step-by-step explanation:

Eliminate parentheses, then subtract the constant term on the left

  8.5 +4 -10k = -24.5

  -10k = -37 . . . . . . . . . . 12.5 subtracted from both sides

  k = 3.70 . . . . . . . . . . . both sides divided by -10 (no rounding required)