Răspuns :
E+25+2-9+3-12+6=17
E+25+2-9+3-12=11
E+25+2-9+3=23
E+25+2-9=20
E+25+2=29
E+25=27
E=2
E+25+2-9+3-12+6-7=10
E+27-9+3-12+6-7=10
E+18+3-12+6-7=10
E+21-12+6-7=10
E+9+6-7=10
E+15-7=10
E+8=10
E=10-8
E=2
E+27-9+3-12+6-7=10
E+18+3-12+6-7=10
E+21-12+6-7=10
E+9+6-7=10
E+15-7=10
E+8=10
E=10-8
E=2