Question

Fatima wants to simplify the following expression.
7(p+3)+2(p-1)
Which option has the correct steps listed out for simplifying the expression?

Answer 1

1) 7 (p) + 7 (3) + 2 (p) + 2 (−1) using distributive property of addition
2) 7p + 21 + 2p −2 simplifying
3) 7p + 2p + 21 – 2 using commutative property of addition
4) p (7 + 2) + 21 – 2 using distributive property of addition
5) 9p + 19 simplifying

1) 7 (p) + 7 (3) + 2 (p) + 2 (−1) using distributive property of addition
2) 7p + 21 + 2p −2 simplifying
3) 7p + 2 + 21 – 2 using commutative property of addition
4) 7p + 21 + 2 −2 using associative property of addition
5) 7p + 21 simplifying

1) 7 + p + 7 + 3 + 2 + p + 2 + (−1) using distributive property of addition
2) p + p + 7 + 7 + 3 + 2 + 2 − 1 using commutative property of addition
3) p (1+1) + 7 + 7 + 3 + 2 + 2 − 1 using distributive property of addition
4) 2p + 20 simplifying

1) 7p + 3 + 2p −1 using distributive property of addition
2) 7p + 2p + 3 − 1 using commutative property of addition
3) 7p + 2 + 3 – 1 using associative property of addition
4) 7p + 4 simplifying

Answer 2

@jim_thompson5910
@Hero
@phi
@Luis_Rivera
@radar
@mukushla
@ganeshie8
@RadEn
Someone help, please?

Answer 3

which do you think?

Answer 4

I honestly don't know. I don't remember learning the order in which these things should happen.

Answer 5

distribute first

Answer 6

which choices dont make sense? can your rule any out?

Answer 7

None of them make sense to me. But the third option looks kind of ridiculous, so I'll rule out that one.

Answer 8

right, what is wrong with 4th one?

Answer 9

if you distribute the 7 it will be 7p and 7*3

Answer 10

just go ahead and do it then

7(p + 3) + 2(p-1)
7p + 21 + 2p -2 what would you do next

Answer 11

Um...I'm really not understanding this.

Answer 12

Start with the original problem. ignore all the choices and just do it on your own

7(p + 3) + 2(p - 1) do you know how to distribute ?

Answer 13

7p + 7*3 + 2p - 2*1 ?

Answer 14

right,
7p + 21 + 2p -2 now can you combine any like terms?

Answer 15

9p + 19?

Answer 16

right, which answer choice has that as an answer?

Answer 17

Oh! The first one! That wasn't as hard as I thought. Thank you!

Answer 18

yw