def sonuc(self):
        denklem = ""
        if((isaretKontrol(self.lineEdit_2.text())) and (isaretKontrol(self.lineEdit_3.text())) and (isaretKontrol(self.lineEdit_4.text())) and (isaretKontrol(self.lineEdit_5.text()))):
            if(ilkkontrol(self.lineEdit.text())):
                if(len(self.lineEdit.text()) != 0):
                    denklem = self.lineEdit.text() + "*V\'\'\' "
                if(len(self.lineEdit_2.text()) != 0):
                    denklem += self.comboBox.currentText() + " " + self.lineEdit_2.text() + "*V\'\' "
                if(len(self.lineEdit_3.text()) != 0):
                    denklem += self.comboBox_2.currentText() + " " + self.lineEdit_3.text() + "*V\' "
                if(len(self.lineEdit_4.text()) != 0):
                    denklem += self.comboBox_3.currentText() + " " + self.lineEdit_4.text() + "*V "
                if(len(self.lineEdit_5.text()) != 0):
                    denklem += self.comboBox_4.currentText() + " " + self.lineEdit_5.text()
                if((len(self.lineEdit.text()) == 0) and (len(self.lineEdit_2.text()) == 0) and (len(self.lineEdit_3.text()) == 0) and (len(self.lineEdit_4.text()) == 0)):
                    denklem += " = " + self.lineEdit_5.text()
                else:
                    denklem += " = 0"
                print(denklem)

def isaretKontrol(test):
    durum = True
    for i in range(0,len(test)):
        if(test[i] == "-" or test[i] == "+"):
            durum = False
            break
    return durum

def ilkkontrol(test):
    durum = True
    for i in range(0, len(test)):
        if(test[0] == "-" or test[0] == "+"):
            continue
        elif(test[i] == "-" or test[i] == "+"):
            durum = False
            break
    return durum