x/y = 3/5
(x + 2)/y = 4/5
5x - 3y = 0
5x + 10 = 4y
4y - 5x = 10
3y - 5x = 0
y = 10
5x - 30 = 0
5x = 30
x = 6
a fração é 6/10
pronto
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Verified answer
x/y = 3/5
(x + 2)/y = 4/5
5x - 3y = 0
5x + 10 = 4y
4y - 5x = 10
3y - 5x = 0
y = 10
5x - 30 = 0
5x = 30
x = 6
a fração é 6/10
pronto