vissersdonovan vissersdonovan
  • 13-05-2022
  • Mathematics
contestada

-2x + 4y = 12

5x - 2y = 10



To answer please type altogether with no spaces. For example if your answer is negative three positive four, type (-3,4)

Respuesta :

ashish4112119
ashish4112119 ashish4112119
  • 13-05-2022

Answer:

(4,5)

Step-by-step explanation:

-2x + 4y = 12

5x - 2y = 10

make them both set to y

4y = 2x + 12 -> y = 1/2x + 3

2y = 5x - 10 -> y = 5/2x - 5

since they're both equal to y, they are equal to each other

1/2x + 3 = 5/2x - 5

2x = 8

x = 4

plug it back in to get y

y = 1/2 (4) + 3

y = 5

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