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18-03-2021
Mathematics

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PLISS ANSWER :C DONT ANSWER IF YDK THAnKSSS
also pls look at both images :)

PLISS ANSWER C DONT ANSWER IF YDK THAnKSSS also pls look at both images class=

PLISS ANSWER C DONT ANSWER IF YDK THAnKSSS also pls look at both images class=

Respuesta :

18-03-2021

Answer:

First image: (6, -1)

2nd image: y = 63

Explanation:

1)

2x + y = 11

1/2x - 5y = 8

y = -2x + 11

1/2x - 5(-2x + 11) = 8

1/2x + 10x - 55 = 8

10.5x - 55 = 8

10.5x = 63

x = 6

2x + y = 11

2(6) + y = 11

12 + y = 11

y = -1

(x , y) = (6, -1)

2)

1/4(8y - 4.8) = 2 (0.9y + 5.4) + 3/5

2y - 1.2 = 1.8y + 10.8 + 0.6

0.2y - 1.2 = 11.4

0.2y = 12.6

y = 63

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