Answered

Welcome to Westonci.ca, where your questions are met with accurate answers from a community of experts and enthusiasts. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Fifteen more than half a number is 9

Sagot :

luana
[tex]x-\ number\\\\ \frac{1}{2}x+15=9\ \ \ \ | subtract\ 15\\\\ \frac{1}{2}x=-6\ \ \ | multiply\ by\ 2\\\\ x=-12\\\\Number\ is\ -12.[/tex]
carlosego

For this case, the first thing we must do is define a variable.

We have then:

x: unknown number

We now write the equation that models the problem:

[tex] (\frac{1}{2}) x + 15 = 9
[/tex]

From here, we clear the value of x.

We multiply both sides of the equation by 2:

[tex] (\frac{2}{2}) x + 2 (15) = 2 (9)

x + 30 = 18
[/tex]

We subtract 30 on both sides of the equation:

[tex] x + 30 - 30 = 18 - 30

x = -12
[/tex]

Answer:

The value of the unknown number is given by:

[tex] x = -12 [/tex]

Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Westonci.ca is here to provide the answers you seek. Return often for more expert solutions.