a surveyor is surveying a street. The surveyor is standing at point P looking down the street a No parking sign at Point P given PA=3x-4, PR=21 meters, AR=7 meters and point A is between point R and point p​

a surveyor is surveying a street The surveyor is standing at point P looking down the street a No parking sign at Point P given PA3x4 PR21 meters AR7 meters and class=

Respuesta :

Answer:

6

Step-by-step explanation:

Pa = 3x-4. Pr = pa+ar

Ar = 7

3x-4+7= 21

Combine light terms

Then order of operations

3x-3=21

3x-18

X=6