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y = sinta
x = 2y - 2
x+5 +y+5 = 41
x+y = 41-10
x+y = 31
(2y-2)+y = 31
3y = 31+2
3y = 33
y = 33/3
y = 11
x = 2y -2
x = 2(11) -2
x = 22 -2
x = 20
indra = 20 tahun
sinta = 11 tahun