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-4x=-11
x=11/4
4.11/4-1=10
x = 11/4 jadi 4x -1 = 4. 11/4 - 1 = 10
2 x + x + 2 + x+4 = 93
3x = 87 x = 29 ( seperti nya salah soal) bukan genap, seharusnya ganjil