Question

What is the value of -3r+8 when r =4

Answer 1

-4.

Explanation:

Substitute r = 4 into the given expression:

= -3(4) + 8

= -12 + 8

= -4.

Answer 2

-4

Explanation:

To find your answer, plug in 4 for r.

`-3r+8\\-3(4)+8`

You can start by multiplying -3 by 4.

`-3(4)+8\\-12+8`

Next, add -12 to 8 and you'll have your answer.

`-12+8\\-4`