himpunan penyelesaian |5-2x| = 3

2x=5-3
2x=2
x=1

atau

-(5-2x)=3
-5+2x=3
2x=8
x=4

Jawabannya...
x=1 & x=4

|f(x)| = a, maka f(x) = a dan -f(x) = a

|5-2x| = 3, maka
5-2x = 3
5-3 = 2x
2x = 2
x = 1

atau
-(5-2x) = 3
-5 + 2x = 3
2x = 8
x = 4

HP = {1,4}