Jika x1 dan x2 memenuhi |3x-4| = x + 5 , maka nilai x1 + x2 adalah... a. 13/4 b. 15/4 c. 17/4 d. 19/4 e. 21/4

3x-4 = x+5
2x = 9
x = 9/2 = 18/4

3x-4 = -(x+5)
= -x-5
4x = -1
x = -¼

x1+x2 = 18/4 + (-¼)
= 17/4