((7.8:0,3-3)3)+3.1):0,7= ((7.8/0.3 - 3)3 + 3.1)/0.7= ((26 - 3)3 + 3.1)/0.7= (233 + 3.1)/0.7= (69 + 3.1)/0.7= 72.1/0.7= 103
((7.8:0,3-3)3)+3.1):0,7
= ((7.8/0.3 - 3)3 + 3.1)/0.7
= ((26 - 3)3 + 3.1)/0.7
= (233 + 3.1)/0.7
= (69 + 3.1)/0.7
= 72.1/0.7
= 103