2x-1<7 variabel pake cara besok dikumpul

2x-1<7
2x<7+1
x<8/2
x<4

2x - 1 = 7
2x = 7 + 1
2x = 8
x = 8 : 2
x = 4

2x - 1 = -7
2x = -7 + 1
2x = -6
x = -6 : 2
x = -3

hp = {-3, 4}
kalau benar makasih
kalau salah sorry