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x-2=8(a-2)
x-8a=-14..... (1)
x+4=3(a+4)
x+4=a+
x-a=...... (2)
x-8a=-14
x-a=
-a=-
a = 6
x-8(6)=-14
x=34
x+a = 34+6 = 40 tahun