What is the answer to 3x –7 = -16

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

What is the value of x? enter your answer in the box.