himpunan penyelesaian |4x-3|≥x+1 adalah

|4x-3| >= x + 1
# 4x - 3 >= x + 1
4x - x - 3 - 1 >= 0
3x - 4 >= 0
3x >= 4
x >= 4/3
# 4x - 3 <= - x - 1
4x - 3 + x + 1 <= 0
5x - 2 <= 0
5x <= 2
x <= 2/5
HP = { x/ x <= 2/5 atau x >= 4/3, x € bilangan real}