Question

Can someone help me?

Answer 1

An expression is shown below:

3(m + 5 + 9m)

Part A: Write two expressions that are equivalent to the given expression.

Part B: Show that one of your expressions in Part A is equivalent to the given expression using algebraic properties. Explain which properties you used.

Part C: Show that your other expression from Part A is equivalent to the given expression by substituting a number for m.

Answer 2

What test is this?

Answer 3

its not a test

Answer 4

For the first part, distribute the 3. That gives you one equivalent expression.

Answer 5

To get a second equivalent expression, add m+9m.
That gives you a second equivalent expression.

Answer 6

what do you mean by distribute?

Answer 7

3(x+4)=3x+12

Answer 8

I distributed the 3

Answer 9

15+30m

Answer 10

@Mertsj

Answer 11

3(m+5+9m)=3m+15+27m
You don't have to combine the like terms according to the directions.

Answer 12

ok

Answer 13

For the second part, explain that you used the distributive property like this:
3(m+5+9m)=3(m)+3(5)+3(9m)

Answer 14

For the third part pick a number like 2 and use the original expression and your other expression from part 2 and replace m with 2 in both expressions and show that you get the same answer for both.

Answer 15

@Mertsj so my two equivalent expressions are 15+30m and 3m+15+27m

Answer 16

When you distribute the 3 you get 3m+15+27m That's one of the equivalent expressions.

Answer 17

When you add m +9m you get 3(5+10m)
That's the other equivalent expression

Answer 18

oh ok

Answer 19

BTW~ thank you so much @Mertsj

Answer 20

yw