40 km/3 L = x km/ 50 L
40 km * 50 L = x km *3 L
2000 = 3 * x
X = 666 km
Answer: -3x^4-4
Step-by-step explanation: -3x^4+4-8 > =-3x^4-4
Answer:
now i dont know if this is the thing your asking but a negative plus a negative is a positive.
Begin by subtracting 1/8 from both sides to get

and get a common denominator of 8 on the right:

. Now simplify and cross-multiply: 39x = -16 andx = -16/39