Question 1096243
7e^x=12-e^-x
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multiply by e^x
7e^(2x) = 12e^x - 1
7e^(2x) - 12e^x + 1 = 0
*[invoke solve_quadratic_equation 7,-12,1]
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e^x =~ 1.6264
x = ln(1.6264)
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e^x =~ 0.0878
x = ln(0.0878)