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Jawaban:
[tex] \frac{30 - 8}{128 - 8} = \frac{x - 8}{112 - 8} \\ \frac{22}{120} = \frac{x - 8}{94 } \\ 22 \times 94 = 120(x - 8) \\ 2068 = 120x - 960 \\ 2068 - 960 = 120x \\ 1108 = 120 \\ x = 1108 \div 120 \\ x = 9.23[/tex]
