jarviswoodards14 jarviswoodards14
  • 09-11-2020
  • Mathematics
contestada

I need help on a math assignment.

I need help on a math assignment class=

Respuesta :

xenia168
xenia168 xenia168
  • 09-11-2020

Answer:

(18 , - 10)

Step-by-step explanation:

5x + 4y = 50 .... (1)

x + 2y = - 2 ... (2)

Solve (2) for "x"

x = - 2y - 2 .... (3)

(3) ----> (1)

5(- 2y - 2) + 4y = 50 ⇔ - 6y - 10 = 50 ⇒ y = - 10 .... (4)

(4) ----> (2)

x + 2(- 10) = - 2 ⇒ x = 18

(18, - 10)

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mercedesroman3 mercedesroman3
  • 09-11-2020
the answer is (18, -7). Hope this helps :)
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