|x-3|+|x+4|=7 tentukan hp dari:

|x - 3| + |x + 4| = 7

(i)
x - 3 + x + 7 = 7
2x + 4 = 7
2x = 7 - 4
2x = 3
x = 3/2

(ii)
x - 3 + x + 7 = -7
2x + 4 = -7
2x = -7 - 4
2x = -11
x = -11/2

HP = {-11/2 , 3/2}