Question

x = 2k -1 , y = k is a solution of equation 3x - 5y - 7 = 0. Find the value of a

Answer 1

Hey friend ✋! here is your answer

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✅Given - x=2k-1

✔️ Y=k
✅ Equation= 3x-5y-7=0

✔️Put value of x & y in given equation

✅3(2k-1)-5(k)-7=0

✔️6k-3-5k-7=0

✔️k-10=0

✅K=10

◆So value of k is 10

✅x=2(10)-1=19
✅y=10

Let's check

✔️Put value in given equation

⭕️3(19)-5(10)-7

⭕️57-50-7

⭕️57-57=0

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⭐️Hope it helps you ⭐️

Answer 2

heya friend

here's your solution :-

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■ Given that ,

x = 2k - 1 and

y = k

■ Put the values on given equation :-

3x - 5y - 7 = 0

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

6k - 3 - 5k - 7 = 0

6k - 5k - 3 - 7 = 0

k - 10 = 0

k = 10

■ Hence , the value of k is 10

Check :-

Put the value of k = ( 10 ) on above equation ,

x = 2k - 1

x = 2 ( 10 ) - 1

x = 19

It is given that y = k

■ So , the value of y is 10

■ Put the values ,

=》3x - 5y - 7 = 0

=》3 ( 19 ) - 5 ( 10 ) - 7 = 0

=》57 - 50 - 7 = 0

=》57 - 57 = 0

Hence proved !!

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hope it helps !!!

thanks for asking :)

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