“one-fifth less than the product of seven and a number”

 

Step-by-step explanation:

Any number is called X

The product of seven and any number = 7X

One-fifth of a number means the same as that number divided by 5.

One-fifth of 7X = 7X/5

Then one-fifth less than the product of seven and a number.

7X - 7X/5

 



true? is that what you're asking or do you mean something else?

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.