23.600+x= 50.000+300
x= 50.000+300 - 23.600
x= 50.300 - 23.600
x= 26.700
x+3.809 - 1.070= 8.500
x+2.739= 8.500
x= 8.500 - 2.739
x= 2.761
2.038+5.655-x= 2.836
7.693-x= 2.836
x= 7.693+ 2.836
x= 10.475
1.685+6.856=x +3.20+2.61
8.541=x + 581
x=8.541-581
x= 7.960