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solve each equation. When needed write the exact answer with natural logs and then approximate the...

solve each equation. When needed write the exact answer with natural logs and then approximate the answer to three decimal places for parts (b) and (c) only.

a) 21-x = 34x+6

b) log4(x2 - 7x + 14) = 1

c) log3(2x-7) - log3 (4x - 1) = 2

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