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posted by Anonymous Tuesday, April 19, 2011 at 9:35am.
solve for x: 8^x=(1/64)^(x-4)
8^x = (1/64)^(x-4), 8^x = (8^-2)(x-4), 8^x = 8^(-2x+8), If 2 equal numbers have equal bases,their exponents are also equal: x = -2x+8, x+2x = 8, 3x = 8, x = 8/3.
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