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Easy

100

3^x/4 = 2

x = 2.52

200

Log_x32 = 5

x = 2

300

Log₃₄₃x = -2/3

x = 1/49 or 0.020

Medium

100

9^m-6 = 78

m = 7.983

200

25^v-2 = 625

v = 4

300

Log_x1/49 = -2

x = 7

Hard

100

Log(3x²+9x+4) = 2

x = -4, 1

200

Log_(x+5)(2x²-14) = 2

x = 13,-3

300

Log_x(8x-15) = 2

x = 3, 5