Question

The speed of an Arabian horse is "4x + 2" miles per hour slower than a thoroughbred horse with a speed of "25x − 5" miles per hour. Find a single expression that represents the speed of an Arabian horse.

Answer 1

arabian is 4x+2 less than 25x-5

arabian=25x-5-(4x+2)
arabian=25x-5-4x-2
arabian=25x-4x-5-2
arabian=21x-7


arabian=21x-7 mph

Answer 2

the speed of an Arabian horse:21x -7

Explanation:

The speed of an Arabian horse is "4x + 2" miles per hour slower than a thoroughbred horse with a speed of "25x − 5" miles per hour.

The speed of an Arabian horse = speed of bred horse - (4x+2)

The speed of an Arabian horse= (25x − 5) - (4x+2)

Remove the parenthesis by multiplying negative sign inside second parenthesis

25x − 5 - 4x-2

combiene like terms

21x -7