Răspuns:
Explicație pas cu pas:
{[(37/5 - 11/3)*45/56 - 2 + 4/5] * 5/3 + 10} : x = 13
{[(111/15 - 55/15)*45/56 - 2 + 4/5]*5/3 + 10} : x = 13
{(56/15*45/56 - 2 + 4/5)*5/3 + 10] : x = 13
[(3 - 2 + 4/5)*5/3 + 10] : x = 13
[(1 + 4/5)*5/3 + 10] : x = 13
(9/5 * 5/3 + 10) : x = 13
13 : x = 13
x = 13 : 13 = 1