nenejk1 nenejk1
  • 11-02-2017
  • Mathematics
contestada

How do I write this as an equation

How do I write this as an equation class=

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Vimal1
Vimal1 Vimal1
  • 11-02-2017
Let x be the number of children
Let y be the number of adults

x + y = 4
4x + 7y = 19
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