Question

Substitute 5 for x and evaluate the expression 4x - 2

Answer 1

In this case we have an equation of the form
`y = 4x-2`

If we have
`x = 5`, we must find the value of y, in this way we have:

`y = 4 (5) -2`

We solve the multiplication:

`y = 20-2`

We know that different signs are subtracted and the sign of the major is placed:

`y = 18`

So, when
`x = 5` then
`y = 18`

Answer:

The result of evaluating the given expression at
`x = 5` is:
`y = 18`

Answer 2

4x -2

substitute 5 for x

4(5)-2

20-2

18