# problem solving equation systems

var('V1', 'V2') solve([V1+V2==0.5,7.20 == 5.5 - log(V1/V2,10)], V1, V2)

SageMath do not solve this system but when with Ctrl+C the calculation end and show in terminal the solution.

If I use natural logarithm in the expression Sage solve this system without any problem.

I can not reproduce your problem, on 7.6.beta5 i got:

Could you please give us some informations so that someone can try to reproduce your problem:

The ?solve gives me:

Algebraicallysolve an equation or system of equations (over the complex numbers) for given variables.But we do not have an algebraic system. For a numerical solution one can substitute V2 from the first in the second, plot and/or use (in my case pari/gp) solve.