Combine Like terms 3 ( x +5 ) - 8 + 11x

14x + 7

Step-by-step explanation:

Alright, let's get started!

A quick note:

Please excuse my dear Aunt Sally = P E M D A S,

Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

YOU MUST USE THIS IN THE CORRECT ORDER

Ok, I think we get it now... let's actually start now!

                                             3 ( x + 5 ) - 8 + 11x

Parentheses first!

= 3x + 15 - 8 +11x

Combine like terms!

= 3x + 11x + 15 - 8

(Sometimes you can make signs or move the like terms next to each other as to not get confused)

= 14x + 7

Now, this is all we can do! Therefore we have our answer (drumroll please)

                                                 14x + 7

Sing the numbers loud, and wear them proud!

Nice job, everyone!

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

5

step-by-step explanation: