Răspunsuri

2014-09-14T15:28:32+03:00
A + 8 x 6 = 81
a +  48 = 81
a = 81 - 48
a = 33

a - (27 + 7) = 24
a - 34 = 24
a = 34 + 24
a = 58
1 5 1