Solve for the given variable
ax-bx=3;x

I need help :

x =

Step-by-step explanation:

Given

ax - bx = 3 ← factor out x from each term on the left side

x(a - b) = 3 ← divide both sides by (a - b)

x =

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58