How do you write an equation representing thirteen less than a number x is three?

Question

33999 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-28T02:02:44

#x-13=3#

#16-13=3#
Therefore, #x# is equal to #16#.

Answer 2 · 2018-03-28T02:06:41

See below.

We are given "thirteen less than a number x is three," and we are asked to form an equation to model this relationship.

Let's start translating from English to Math. "Thirteen" is #13# and "three" is #3#. Now, we have "#13# less than a number #x# is #3#."

In math, "is" usually means "equals to." So now we have something more like an equation: "#13# less than a number #x# #=# #3#.#

We are left with "less than a number." We can rewrite this as:

#color(red)(x-13=3)#

I hope that helps!