the quotient of 45 and the sum of a number and 7 equals 15

Question

how do I write as a equation

Answer 1

Let x = a number

 

Since we have an equal sign in the statement, we will translate this into an equation. Quotient means we divide and sum means we add.

 

45 / (x + 7) = 15

 

 

Now, if you are curious about solving for the number,

 

first multiply both sides of equation by (x + 7).

 

45 = 15(x + 7)

 

 

Next, divide both sides of equation by 15.   This will allow us to isolate (x + 7) on one side.

 

3 = x + 7

 

 

Subtract 7 on both sides of equation.

 

-4 = x

 

The number is -4.

Answer 2

Noelia, what does quotient mean? Dividing, right? The sum of a number and 7 is x + 7 (if we let x = the number)

 

So, we have 45/(x+7) = 15

 

Can you solve it from here? I bet you can!