Question

x mais 55,41=3,87 quanto que e´

Answer 1

 X + 55,41 = 3,87

X = - 55,41 +  3,87 
X = - 51,57 
X = 3,84 

Answer 2

x+55,41=3,87
x=3,87-55,41
x=-51,54
Resposta: -51,54