anonymous2625
anonymous2625 anonymous2625
  • 10-02-2017
  • Mathematics
contestada

solve the system of equations by substitution
x=-4y
x+5y=2

(-8,2)
(8,-2)
(2/9,8/9)
(-12,3)

Respuesta :

SutaPinatih
SutaPinatih SutaPinatih
  • 11-02-2017
Substitute x = -4y into x+5y = 2.
-4y + 5y = 2
y = 2. Substitute this value into the first equation: x = -4 × 2 = -8.
So the answer is (-8,2).
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