K+3=-9
k=-12 is the answer
Answer:
(-∞,∞)
Step-by-step explanation:

- Simplify ⇨ 19m + 14 - 3 (3m + 7)


Use the distributive property to multiply -3 by 3m+7.

Combine 19m and -9m to get 10m.

Subtract 21 from -14 to get -35.

Answer:1.72Gal
Step-by-step explanation:1 Gal is 3.785 L. 6.5 / 3.785 = 1.72