200-20x[20+2x(950-600:4x3):5:10]:10=

Răspuns :

=200-20×[20+2×(950-600:12):5:10]:10
=200-20×[20+2×(950-50):5:10]:10
=200-20×(20+2×900:5:10):10
=200-20×(20+1800:5:10):10
=200-20×(20+360:10):10
=200-20×(20+36):10
=200-20×56:10
=200-1120:10
=200-112
=88