aliciaaguilera4
aliciaaguilera4 aliciaaguilera4
  • 26-02-2020
  • Mathematics
contestada

Solve each system by substitution

Solve each system by substitution class=

Respuesta :

aryasus30
aryasus30 aryasus30
  • 26-02-2020

Step-by-step explanation:

{9x+3y=-36

y=-3x-21

9x-9x-36=-36

y=-3x-21

x=0

y=-21

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