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Problems with sage solve.

asked 2017-05-01 17:40:07 +0200

MaAnUu gravatar image

So I have this equation:

eq = 20000 * 1.02^x + 200 * (1 - 1.02^x) / (1 - 1.02) == 30000

And sage gives me this solution with solve(eq, x):

[51^x=4/3⋅50^x]

Why doesnt it give me just the x value?

Please help, thanks.

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answered 2017-05-01 19:18:14 +0200

ndomes gravatar image
eq = 20000 * 1.02^x + 200 * (1 - 1.02^x) / (1 - 1.02) == 30000
eq2 = solve(eq,x)[0]
solve(log(eq2).canonicalize_radical(),x)
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Comments

I don't understand the answer. Could you be more explicit, please? I'm having a similar problem:

sage: f=4.94 * 1.062^x

sage: solve(f(x) == 15, x)

[531^x == 750/247*500^x]

Ross1856 gravatar imageRoss1856 ( 2017-05-19 15:38:34 +0200 )edit

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Asked: 2017-05-01 17:40:07 +0200

Seen: 133 times

Last updated: May 01 '17