Question

Evaluate the following expression when 8x-7 when x=7

Answer 1

They ask for the evaluated expression:

`8x-7`

When x=7

So, actually, we will answer a number and not an expression. Now, to find this number we're going to replace all the places that appear x in the original expression, with the given value of x.

Then, we have:

`8(7)-7`
`56-7`
`49`

So, we can conclude that the correct answer is 49.