heltonm heltonm
  • 16-11-2016
  • Mathematics
contestada

use substitution to solve each system of equations
y=3x-7
3x-y=7

Respuesta :

rawrcx99
rawrcx99 rawrcx99
  • 16-11-2016
3x-3x=7 x=7 or 0 cause anything ×0 is 0
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