Question

Which equation best represents this situation?

The number 39 is equal to 13 subtracted from an unknown number.

A.
39 = r ÷ 13

B.
39 = 13 + r

C.
39 = r – 13

D.
39 = 13r

Answer 1

What's your say?

Answer 2

Start with this:
13 subtracted from an unknown number.
If the unknown number is represented by r, how would you write that expression?

Answer 3

If you try to read it as an equation you should get your answer.
The number 13 is equal to 13 subtracted from an unknown number
13 = 13 subtracted from an unknown number
If you are subtracting 13 from the number how would you write the second half of the equation?

Answer 4

is it a b c or d

Answer 5

You are subtracting 13 from (r)

Answer 6

So by reading what action you are performing to the variable r you should be able to find out what equation you will need to use.

Answer 7

what da answerrrrr

Answer 8

I'm not going to give you the direct answer. You need to think about it. 13 SUBTRACTED from the variable r. There is only one answer up there with the subtraction symbol.

Answer 9

pffffft

Answer 10

I am pretty much typing out the answer for you. just not directly. You need to understand that if I just give you the answer, what are you learning. You'll just keep asking similar questions without learning anything.