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CAN I GET ANY HELP FOR MY HOMEWORK PROBLEMS? :( Solve the system of equations by using the substitution method. [tex]\left \{ {{x+y=20} \atop {y=-5x}} \right.[/tex] Are there solutions, none, or infinite numbers? If there's one solution, what's the ordered pair?

Respuesta :

Answer:

One solution. (x,y) = (-5,25)

Step-by-step explanation:

y = -5x

x + y = 20

x + (-5x) = 20

-4x = 20

x = -5

y = -5 (-5)

y = 25

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