Respostas

  • Usuário do Brainly
2014-07-31T01:07:07-03:00
 \frac{x}{y} = \frac{7}{4}

 \frac{x+y}{x} = \frac{7+4}{7}

 \frac{242}{x}= \frac{11}{7}

11x=1694

x= \frac{1694}{11} =154

 \frac{242}{y} = \frac{11}{4}

11y=968

y= \frac{968}{11} =88

se x=154
y=88
x-y=154-88=66
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2014-07-31T06:13:19-03:00