What is the value of l-12l

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

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