Here is the method for solving that equation:
Step #1: Write the equation:
-15x = 0
Step #2: Divide each side of the equation by -15 :
<u>x = 0</u>
Let x feet be the actual length of the school bus. You know that in a scale drawing

then

Write a proportion:

Answer: the actual length of the school bus is 45 feet.
Step-by-step explanation: x+(x+2)+(x+4)+(x+6)+(x+8)+(x+10)=126
6x+30=126
6x=96
X=16
Since x is the first number , x+6 is the fourth even number .
Thus, the fourth number in the sequence is 22
Charlie bought 2.5 lb/pounds of oranges for a total of $3.75
One pound of oranges equals to $1.50

The answer: ( x ; y ) = ( -2 ; 6 )
Ok done. Thank to me :>