nyastewart14 nyastewart14
  • 24-03-2020
  • Mathematics
contestada

what is the value of X?
-5x-5y=25
3x+5y=-21

Respuesta :

afzbyjus
afzbyjus afzbyjus
  • 25-03-2020

Answer:

x = -2

Step-by-step explanation:

Solution:

-5x - 5y = 25    -(1)

3x + 5y = -21     -(2)

Adding (1) and (2),

-5x - 5y + 3x + 5y = 25 - 21

-5x + 3x -5y + 5y = 4

-2x = 4

x = 4 / -2

Therefore, x = -2

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Answer Link
dominiksefedini dominiksefedini
  • 25-03-2020

Answer:

Step-by-step explanation:

-5x+3x=-2x

-5y+5y=0y

-21+25=4

-2x=4

2x=-4

x=2

Answer Link

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