Question

solve the equation and chec the solution
s-27=-40

Answer 1

You need to undo that -27 so you can isolate s.

Answer 2

So how do you undo that operation?

Answer 3

S=-13
I don't really know how to explain how I got it... :(

Answer 4

You undo it by adding 27 to both sides

You want the left side to have -27+27 = 0

The 0 will go away (leaving just s behind)

Answer 5

s-27=-40

s-27+27=-40+27

s + 0 = -13

s = -13

Answer 6

Yea.. I just know what it is.. :)