Math, asked by vk1815886, 3 months ago

kx+5y=8, 4x+7y=5 find the value of K

Answers

Answered by vedvatikatara

4

Answer:

k = 2.3846153846

Step-by-step explanation:

4x + 7y = 5

kx + 5y = 8

5(4x + 7y) = 5(5)

- 7(kx + 5y) = 7(8)

= 20x + 35y = 25

- 7kx + 35y = 56

______________

13k + 0y = -31

13k= -31

k = -31 /13 OR

k = 2.3846153846

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