Question

The value of x and y in given linear equations 3x-y=5 and 5x-y=11

Answer 1

Answer:

3x-y=5___(1)

5x-y=11_____(2)

_______

-2x=-6

x=3

form equation (1)

3×3-y=5

-y=5-9

y=4

Answer 2

Answer:

x = 3

y = 4

Step-by-step explanation:

Given a pair of linear equations such that,

3x = y + 5 ......(1)

5x - y = 11 .....(2)

To solve it by substitution method.

Fron eqn (1), we have,

=> y = 3x -5

Now, substituting this value in eqn (2), we get

=> 5x -(3x-5) = 11

=> 5x - 3x +5 = 11

=> 2x = 11-5

=> 2x = 6

=> x = 6/2

=> x = 3

Therefore, we have,

=> y = 3(3) - 5

=> y = 9 - 5

=> y = 4

Hence, the values of x = 3 and y = 4.

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