Question

The steps in the simplification of the expression 46 + 7x + 4y −2x – y − 27 are shown below.

Step 1: 46 – 27 + 7x − 2x + 4y − y
Step 2: (46 − 27) + (7x − 2x) + (4y − y)
Step 3: 19 + x (7 − 2) + y (4 − 1)
Step 4: 19 + x (5) + y (3)
Step 5: 19 + 5x + 3y

Which statement is correct?

Step 1 uses commutative property of addition, and step 5 uses commutative property of multiplication.

Step 4 uses associative property of multiplication, and step 3 uses simplification.

Step 2 uses associative property of addition, and step 5 uses simplification.

Step 1 uses di

Answer 1

too hard to go through all this, i get confused
so lets do it this way
step 1: commutative law, symbols changed places
step 2: associative law, parentheses are introduced
step 3: distributive property to turn 7x−2x in to x(7−2)
step 4: arithmetic
step 5: commutative law to turn x(5) in to 5x

Answer 2

okay :) I still need help :/

Answer 3

The second one is the answer :)

Answer 4

thank you :)

Answer 5

No problem hun-- medal me tho ;)