The app can solve equations of 2 by 2 and 3 by 3 systems, and pro version of this can solve upto 6 by 6 systems, if you like this than enjoy and go for pro.
ID del paquete: parasdeveloper.linearequationsolverFirma SHA1: 68:70:B7:E8:BA:93:C5:7A:E5:99:3A:8A:75:8B:FD:07:DA:4B:DD:76Desarrollador (CN):Organización (O): Paras DeveloperLocalización (L):País (C):Estado/ciudad (ST):ID del paquete: parasdeveloper.linearequationsolverFirma SHA1: 68:70:B7:E8:BA:93:C5:7A:E5:99:3A:8A:75:8B:FD:07:DA:4B:DD:76Desarrollador (CN):Organización (O): Paras DeveloperLocalización (L):País (C):Estado/ciudad (ST):