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-4x = 3 -2
-4x = 1
x = 1/-4
x = -1/4
Jika, x adalah himpnan asli, maka HP = { } atau himpunan kosong.
b. 2 +x/4 = 5
x/4 = 5 -2
x/4 = 3
x = 4 . 3
x = 12
Jadi, HP = {12}.
2 - 4x = 3
2 - 2 - 4x = 3 - 2
-4x = 1
4x = -1
x = -1/4
HP = {}
nomor b
2 + x/4 = 5
4(2 + x/4) = 4(5)
8 + x = 20
8 - 8 + x = 20-8
x = 12
HP = {12}