Oliver is thinking of a number. He multiplies it by 5, subtracts 26, and then divides by 6. He then multiplies his original number by 3, and gets the same answer. Find Oliver's number.

Respuesta :

Answer:

-2

Step-by-step explanation:

Let Oliver's number be x.

He multiplies it by 5:

x * 5 = 5x

He then subtracts 26:

5x - 26

Then, he divides by 6:

[tex]\frac{5x - 26}{6}[/tex]  

He then multiplies his original number by 3, and gets the same answer.

This implies that:

[tex]\frac{5x - 26}{6} = 3x[/tex]

Let us simplify this:

[tex]\frac{5x - 26}{6} = 3x\\\\5x - 26 = 3x * 6\\\\5x - 26 = 18x[/tex]

Collecting like terms:

[tex]5x - 18x = 26\\\\-13x = 26\\\\=> x = \frac{26}{-13}\\\\x = -2[/tex]

Oliver's number is -2.