Question

When solving an equality such as:

y>x^2-1

I want to move the y to the right side, and the -1 to the left side. I know I have to change the sign when I swap answers, but do I have to do it twice since I am moving 2 parts of the equations?

Answer 1

you get y+1>x^2
then sqrt(y+1)>x
no need to move y or change the equality
You only change the equality if you multiply the whole thing by a negative

Answer 2

think about it in terms of numbers 9>3^2 -1
10 > 3^2
sqrt (10)>3