Question

How do you evaluate the expression 4y + 8y + 6 + 2y if y=2?

Answer 1

`=color(blue)(34`

Explanation:

The expression given is
`4y + 8y +6 +2y`

And the value for `y` given is
`y=color(blue)(2`

Substituting the same in the expression:

`4y + 8y +6 +2y = 4 xx color(blue)(2) + 8 xx color(blue)(2) + 6 + 2 xx color(blue)(2`

`=8 +16 + 6 +4`
`=color(blue)(34`