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Verified answer
Kelas 9 MatematikaBab Akar dan Pangkat
^ = pangkat
8^(2x - 3) = 128^(x - 1)
(2³)^(2x - 3) = (2⁷)^(x - 1)
3 (2x - 3) = 7 (x - 1)
6x - 9 = 7x - 7
6x - 7x = 9 - 7
-x = 2
x = -2