systems of equations. solve using substitution show all work

x=3y+6
2y+x=-9

1 thought on “systems of equations. solve using substitution show all work<br /><br /> x=3y+6<br /> 2y+x=-9”

1. Step-by-step explanation:

   x = 3y + 6 — (1)

   2y + x = 9

   From equation 1,

   => 2y + (3y +6) = 9

   => 5y + 6 = 9

   => 5y = 3

   => y = 3/5 = 0.6

   x = 3y + 6 = 1.8 + 6 = 7.8

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