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Todas as categorias

1 respostas

x + y = 31
Logo x = 31 - y
Substituindo na fração temos

( 31 - y )/y = 5/3
5y = 3(31-y)
5y=93-3y
5y+3y = 93
8y=93
y= 93/8
2 -
x + y = 31
x + 93/8 = 31
x = 31 - 93/8
x = 155/8

2007-03-09 07:30:28 · answer #1 · answered by ♥ ŠÜZÎ ♥ 7 · 0 0

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