andrelaudat andrelaudat
  • 17-02-2016
  • Mathematics
contestada

y=-5
5x+4y=-20
it say solve by substitution

Respuesta :

Panoyin
Panoyin Panoyin
  • 17-02-2016
y = -5
5x + 4y = -20

    5x + 4y = -20
5x + 4(-5) = -20
    5x - 20 = -20
        + 20  + 20
           5x = 0
            5     5
             x = 0
       (x, y) = (0, -5)
Answer Link
Аноним Аноним
  • 17-02-2016
Y=-5
5x+4y=-20

Substitute y into the equation. 

5x + 4(-5) = -20
5x + -20  = -20
        +20    +20

5x = 0
x = 0

Now we have our values. 

Answer: y = -5 and x = 0

Answer Link

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