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H + 5 = R
H + R = 27
Ditanya:
R + 2 =...?
Jawab :
H + R = 27
H + H + 5 = 27
2H = 22
H = 11
H + R = 27
11 + R = 27
R = 16
Maka,
R + 2 = 16 + 2 = 18
*UMUR HEMA ⇒ X + 5
JUMLAH UMUR MEREKA 27 ....JADI....
RAJU + HEMA = 27
X + X + 5 = 27
2X + 5 = 27
2X = 27 - 5
2X = 22 ......(dibagi 2)......
X = 11
JADI UMUR RAJU SAAT ITU 11 TAHUN
UMUR RAJU DUA TAHUN KEMUDIAN YAITU 13 TAHUN