Question

find the value of 3 X + 4 Y is equal to 11 and 4 x + 3 Y is equal to 11​

Answer 1

Answer:

Step-by-step explanation:

3x + 4y =11

4x + 3y =11

subtracting, y-x =0 so x=y

substituting in any equation, 3y + 4y =11 so 7y =11 or y=11/7

and x=y=11/7

Answer 2

Answer:

3x+4y=11

4x+3y=11

12x+16y=44

12x+9y=33

-. -. -

7y=11

y=11/7

3x+4x11/7=11

3x+44/7=11

3x=11x7/44

3x=77/44

3x=7/4

x=7/4x3

x=7/12