Question

HELP ME PLZ ANSER ALL 50 POINTS​

Answer 1

Explanation:

Commutative means a + b = b + a

So, 4x + 3 = 3 + x

Associative means a + (b + c) = (a + b) + c

So, 6 + (9 + 7) = (6 + 9) + 7

Distributive means expand the bracket a * (b + c) = a*b + a*c

So, (4x + 3y + 2z) * 7 = 4x*7 + 3y*7 + 2z*7

Commutative is a + b = b + a

So, 15a + 15b = 15b + 15a

Answer 2

The commutative property states that we can sum the terms in different orders and the result will be the same:

a+b=b+a

So for the expression 4x + 3, we can write:

4x+3=3+4x

The associative property states that we can group the operations of sum and subtraction in different orders and the result is the same:

a+(b+c)=(a+b)+c

So for 6 + (9 + 7) we have:

6+(9+7)=(6+9)+7

The distributive property states the following:

a⋅(b+c)=a⋅b+a⋅c

So for (4x + 3y + 2z) * 7, we have:

(4x+3y+2z)⋅7=28x+21y+14z

Using the commutative property for 5a + 15b, we have:

5a+15b=15b+5a