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tinggi pohon = x + 4 m
tinggi anak = x m
bay pohon = 6,3 m
bay anak = 1,8 m
jawab
=
=
1,8(x+4) = 6,3x
1,8x + 7,2 = 6,3x
6,3x - 1,8x = 7,2
4,5x = 7,2
x =
x = 1,6
tinggi pohon = x+4
=1,6 + 4
=5,6 m