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2x + x = 14 -5
3x = 9
x = 9 : 3 = 3
jika ini persamaan mutlak maka juga dicari
2x +5 = -14 + x
2x - x = -14 -5
x = -19
maaf kalau salah
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Agar lebih mudah gunakan pertukaran tempat,,,dengan suku yg sejenis
2x + x = 14 - 5
apabila tempat d tukar maka tanda jadi berubah
2x + x = 14 - 5
3x = 9
3 : 3 = 9 : 3
x = 3