A number decreased by 10 is 19. What is the number?

Question

Please help me, I dont get this

Answer 1

The unknown number is "X".

Let's write it in an equation form:

X - 10 = 19

Now solve for "X"

X - 10 = 19

We have to get the "X" by itself on one side of the equation. To do that, we have to move everything else to the other side. What you do on one side, you have to do on both sides. We are going to keep the "X" on the left side and move everything to the right side.

X - 10 = 19

+ 10 = + 10

X = 29

Hope this helps.

Answer 2

n = the number

n - 10 = the number decreased by 10

n - 10 = 19

Can you solve for n and finish from here?