A small balloon starts at 7 meters off the
ground and rises at 2.5 meters per
second. A large kite starts at 12 meters
off the ground and rises at 1.5 meters per
second. Solve the equation to find how
many seconds it takes the kite and the
balloon to be at the same height.
7 + 2.5x = 12 + 1.5x
answer:________