Select the correct answer how many solutions for x dose the following equation have 2(x+4)-1=2x+7

every number is correct.

Step-by-step explanation:

2 (x + 4) - 1 = 2x + 7

2x + 8 - 1 = 2x + 7

2x + 7 = 2x + 7

     - 7          - 7

2x = 2x

/2     /2

x = x

It asks how much longer will it take Tom to drive his regular trip, but nothing else is stated expect the distance and average speed... so I'm gonna with that! :D

Time = Distance/Speed
Time = 280 km / 80 km/h (divide 280/80, cancel out km)
Time = 3.5 hours

It will take Tom 3.5 hours to drive his regular trip.