tentukan hp bantu donk

1.|5-2x|=11
=|5-2x| { 5-2x, x > 5/2
-(5-2x), x < 5/2
* 5-2x=0. * -(5-2x) = 0
-2x=-5. -5+2x =0
x = 5/2. 2x = 5
x = 5/2
* 5-2x = 11. * -5+2x = 11
-2x = 11-5. 2x = 11 + 5
-2x = 6. 2x = 16
x = 6/-2 = -3. x = 16/2 = 8
hp = tidak ada yang terpenuhi persyaratan
2. gak tau
3. carany sma kayak no 1