Question

If x=2k+1 and y=k is a solution of the equation 5x+3y=7. Find the value of 'k'​

Answer 1

Answer: is 2/3

Step-by-step explanation:

if x= 2k +1

and

y=k

then put the values of x and y in 5x + 3y = 7

so 5 (2k+1)+3(k)=7

13k =7-5

13k =7-5

13k =2

k=2/13 ............. ad this is the answer.

proof= put value of K in the equation

5 (2 (2/13)) + 3 ( 2/13)...........gives the answer 7

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Answer 2

◐ Given ◐

x = 2k + 1

y = k

is a solution of the equation 5x + 3y - 7 = 0

◐ To find ◐

Value of k

◐ Solution ◐

5x + 3y - 7 = 0

☯ Substitute the value of x and y

5(2k + 1) + 3(k) - 7 = 0

10k + 5 + 3k - 7 = 0

13k + 5 - 7 = 0

13k - 2 = 0

13k = 2

k = 2/13

∅ The value of k is ²⁄₁₃