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Verified answer
PertidaksamaanKelas X
2x - 1 ≤ 11
2x ≤ 11 + 1
2x ≤ 12
x ≤ 12 / 6
x ≤ 6
HP : {x | x ≤ 6 , x ∈ R}
=2x≤11+1
=2x≤12
=x≤12 : 2
=x≤6