Question

can we say y=-y

Answer 1

we can say that y=|-y| (absolute value)

but without absolute value, these two statements are not equal

Answer 2

true ^

think of it as saying (without the variable) y=-y


however, anything multiplied by zero is zero.

Answer 3

|y| = -y *

Answer 4

Does that make sense? @dalenezi

Answer 5

aha I got it , thank you guys

Answer 6

@Jamierox4ev3r yeah thanks a lot

Answer 7

no problem :)

Answer 8

Fight me fiz you math nazi

Answer 9

:)

Answer 10

^ mhm. There's a proof behind this. Not going that far...