Solve this equation -5(1+2n)=15

n = - 2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

- 5 (1 + 2n) = 15

(− 5) (1) + (− 5) (2n) = 15

− 5 + − 10n = 15

− 10n − 5 = 15

Step 2: Add 5 to both sides.

− 10n − 5 + 5 = 15 + 5

− 10n = 20

Step 3: Divide both sides by -10.

− 10n/ − 10 = 20/ − 10

n = − 2

Hope this helps! I am sorry if it is a little confusing, I mean a lot.

umumumumum

im not sure

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