Question

if x= a and y = b IS THE SOLUTION of the equation 3x-y=2 and 4x+7y= 11, then the values of a and b are.

toh दोस्तों कैसे हो आप सब
जल्दी से मेरे कुछ सवाल का जवाब दो
bakchodi नहीं करने का​

Answer 1

Answer:

a = 1,b=1

Step-by-step explanation:

please mark me the brainliest if it helps.

Answer 2

Answer:

x =1 and y= 1

Step-by-step explanation:

3x - y = 2 (1)

4x +7y = 11 (2)

MULTIPLY EQUATION 1 BY 7 , WE GET

21x - 7y = 14 (3)

Now, ADD EQUATION 3 AND 2 , WE GET

21x -7y + 4x + 7y = 14+11 (both -7y and +7y cancelled out )

21x + 4x = 25

25 x = 25

THEREFORE , x = 1

NOW , PUT THE VALUE OF x in equation 2 , we get

4 + 7y = 11

= 7y = 11-4

=. 7y = 7

Therefore , y = 1

Hence, a and b is equal to 1