cassreanae2006 cassreanae2006
  • 09-01-2020
  • Mathematics
contestada

what is -3x-5y=6
y=-3​

Respuesta :

agentflane239
agentflane239 agentflane239
  • 09-01-2020

Answer:

x = 3

Step-by-step explanation:

1) Substitute -3 for y in the equation:

-3x - 5(-3) = 6

2) Simplify, two negatives multiplied equals a positive.

-3x + 15 = 6

3) Solve for x, first subtract 15 from both sides

-3x - 15 + 15 = 6 - 15

-3x = -9

4) Solve for x, divide both sides by - 3

-3x/-3 = -9/-3

x = 3

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