AmberCruzSM AmberCruzSM
  • 29-10-2020
  • Mathematics
contestada

solve the system by substitution
{r + s – 5t = -13
{3s + t = -8
{t = 1

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brookevrooke brookevrooke
  • 29-10-2020
x + y = 3, 2x - 8y = 19

4x + 4y = 1, 6x - y = 1

x + y = 4, x - y = 2
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