3x = (96-75) 3x = 21
So X = 7
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8-3x = 128 -3x = 128-8 -3x = 120 x = -40
3x+4=10 To solve: 3x+4=10 3x=6 x=2
3 ln(x) = ln(3x)ln(x3) = ln(3x)x3 = 3xx2 = 3x = sqrt(3)x = 1.732 (rounded)
x + 2x = 33 3x = 33 3x/3 = 33/3 x = 11
3x-2 = 2x+3 3x-2x = 3+2 x = 5