Question

Write an algebraic expression that represents the sum of 18 and the opposite of a number

Answer 1

Hi, there!

_______

"The sum of" _+_

"the opposite of a number" -s

Putting the parts together

`\sf{18+(-s)}`

But we don't usually leave the answer like that, we write it as:

`\sf{18-s}`

Hope the answer - and explanation - made sense,

happy studying!!

Answer 2

The expression you are looking for is: 18 +x Explanation: The sum of two numbers is the result of adding them. Typically we use a letter like x to stand for a number. So the sum of 18 and a number is 18+ x

Explanation: