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4 years ago

Which points are on the the graph equation -3x+6y+5=-7

1 answer:

6 0

-3x + 6y + 5 = -7
<u>      -5 -5</u>
      -3x + 6y = -12
-3x + 3x + 6y = -12 + 3x
   <u>6y</u> = <u>-12 + 3x</u>
      6    6
   y = -2 + 1/2x
-3x + 6(-2 + 1/2x) = -12
   -3x - 12 + 3x = -12
   -3 + 3x - 12 = -12
      0x - 12 = -12
   <u> +12    +12</u>
   <u>0x</u> = <u>0</u>
      0    0
   x = 0
   -3(0) + 6y = -12
      0 + 6y = -12
      <u>+0    +0</u>
      <u>6y</u> = <u>-12</u>
       6    6
      y = -2
      (x, y) = (0, -2)

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