Question

When you solve an equation, how do you know when to add and when to subtract? You may include an example if you need to.

Answer 1

what type of equation?

Answer 2

what math are you in?

Answer 3

Solving Equations Using Addition. As in example: x minus forty-five equals twelve

Answer 4

so...
x-54=12 ; you will add 54 to the other side because you wanna get rid of it, but when you do that you have o make sure you add it on the other side too
so it will look like:
x-54=12
+54 +54
now there is only an x on one side and on the other side its now 66. (its 66 because you added 54)

Answer 5

so it looks like this

x=66, and that is your awnser

Answer 6

Yes, I get that. Yet I don't need to solve anything, I just need to explain
'when I know to subtract' (:

Answer 7

now for your question, see how I added the 54? I added because the 54 is a negative in the equation.

Answer 8

you subtract when there is a positive and you add when there is a negative.
if it was x+54, then you would subtract. but seince its -54 you add

Answer 9

the point of subtracting is to get rid of the number on that side so the x can be all alone