Resposta :
x=(3/5 - 5/4 + 7/2 ) - (2 - 1/3 + 5/2)
x= 3/5 - 5/4 + 7/2 - 2 + 1/3 - 5/2
x = 36 - 75 + 210 - 120 + 20 - 150
60
x = - 39 +90 - 130 => - 39 - 40 => - 70 ou - 7/6
60 60 60
ef fui
Determine o valor de x:
x=(3/5 - 5/4 + 7/2 ) - (2 - 1/3 + 5/2)
x=(3/5 - 5/4 + 7/2 ) - (2 - 1/3 + 5/2)
x= 3/5 - 5/4 + 7/2 - 2 + 1/3 - 5/2
x = 36 - 75 + 210 - 120 + 20 - 150
60
x = - 39 +90 - 130 => - 39 - 40 => - 70 ou - 7/6
60 60 60
ef fui