its pretty easy: 3-2 = 1 so if u multiply 1 x 7x, it equals 7x
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2log4(7x) - 5 = 0 2log4(7x) = 5 log4(7x) = 5/2 7x = 45/2 =(41/2)5 = 25 = 32 x = 32/7
7x -39 = -32
7x-4=x+2 7x=x+2+4 7x=x+6 7x-x=6 6x=6 X=1
65 = 2x - 7x 65 = -5x 65/-5 = -5x/-5 -13 = x
X = 0 and -11/36