Question

IF3x+4y=11and 4x+3y=10,then find the value of x+y​

Answer 1

Step-by-step explanation:

kal bata denga...okay thanks..

Answer 2

Step-by-step explanation:

3x+4y=11.....eq(1)

4x+3y=10....eq(2)

multiple eq(1) by 3 and by 4

9x+12y=33....eq(3)

16x+12y=19.....eq(4)

subtract eq 3 and eq 3

16x+12y=19

- 9x+12y=33

- - -

7x =-14

x= 14\7

x=2

substitute x=2 in eq 1

3x+4y=11

3x2 +4y =11

6+4y=11

4y =11-6

4y =5