Question

Kil) 2x + Зу
Зу = 9
3х + 4у
4y = 5​

Answer 1

Answer:

2x + 3y = 9

2x = 9 - 3y

x = 9-3y / 2

3x + 4y = 5

3 ( 9- 3y / 2 ) + 4y = 5

27 - 9y + 8y = 10

-y = 10 - 27

y = 17

2x + 3 (17) = 9

2x = 9 - 51

2x = -42

x = - 42 / 2

x = - 21 .

Step-by-step explanation:

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