26 February, 07:30
What does x equal in y=|x| when y=-3
26 February, 08:03
Replace all the variables that we know the value for.
-3 = |x|
Make to equations from this one.
-3 = x and - 3 = - (x)
Solve the first one.
-3 = x
x = - 3 < - - Switch it around
-3 = - (x)
- (x) = - 3 < - - Switch it around
x = 3 < - - Divide both sides by - 1
So, there are two possible answers, - 3 and 3.
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