Question

find the values of X + Y and x -y from the example given below without showing for X and Y ,4 x + 3 Y ,= 24 ;3 X + 4 Y =25​

Answer 1

Answer:

x+y = 7, x-y = -1

Step-by-step explanation:

Given

4x+3y = 24 ------->1

3x+4y = 25-------->2

1+2

(4x+3y)+(3x+4y) = 24+25

7x+7y = 49

7(x+y)= 49

x+y = 7

1-2

(4x+3y)-(3x+4y) = 24-25

4x+3y-3x-4y = -1

x-y = -1