Hello, je suis dans une énigme de maths, et j'ai une correction, mais je voudrais comprendre comment passe t-on de :
v(t_{1} +t_{2}) = 50
Vt_{1} = vt_{1} + 50
Vt_{2} = 50 - vt_{2}

à :

t_{1} = \frac{50}{V-v}
t_{2} = \frac{50}{V + v}
t_{1} + t_{2} = \frac{50}{v}

Merci :)
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