Question

Qual o número que somado 3/4 resulta em 1/2?

Answer 1

x + 3/4 = 1/2
x = 1/2 - 3/4
x = 2/4 - 3/4
x = - 1/4

Answer 2

x+3/4=1/2
x=1/2-3/4
x=2/4-3/4
x=-1/4