Question

7/x+8/y=2, 2/x+12/y=20 solve​

Answer 1

Answer: x=-1/2  y=1/2

Step-by-step explanation:

7/x+8/y=2

7y+8x=2xy -----------1

2y+12x=20xy----------2

7(eq2) - 2(eq1)

  14y+84x=140xy

-  14y+16x=4xy

=  68x=136xy

=  y=1/2

substituting y value in equation 1

x=-1/2

Answer 2

7÷X+8÷y=2

1÷X=a;1÷Y=b

7(1÷X)+8(1÷Y)=2

7a+8b=2----------------[1]

2÷X+12÷Y=20

2(1÷X)+12(1÷Y)=20

2a+12b=20-------------[2]

7a+8b=20---------------[1]

2a+12b=20--------------[2]

2(7a+8b=2)

7(2a+12b=20)

after this continuation is before pic which one i have sended u

here is ur answer

MARK AS BRINLIST