Question

Which expression is equivalent to x + x + x + 5 + 5, no matter what value is substituted in for x?
A)
3x + 5
B)
3x + 7
C)
x + 10
D)
3x + 10

Answer 1

@AMQ

Answer 2

@Chunkymonkay

Answer 3

how many x's are there?

Answer 4

3

Answer 5

so x+x+x can be shortened to 3x

Answer 6

3x + 10 it's the same thing as x+x+x 2+2+2=6 2 times 3=6

Answer 7

adding up something a bunch of times can be shortened to multiplying

Answer 8

5+5 will always equal 10

Answer 9

so the answer is 10?

Answer 10

Example

Answer 11

40

Answer 12

?

Answer 13

40

Answer 14

the same applies with variables like x

Answer 15

so the answer is 40:)

Answer 16

yeah for my little example

Answer 17

but whats the answer to my question?

Answer 18

well I've shown that x+x+x = 3x

Answer 19

and someone else said that 5+5 is 10

Answer 20

so 3x

Answer 21

D because 1x+1x+1x+5+5= 3x+10

Answer 22

thank you