ALGEBRA 3

If  x+3y = 1            find  ^x/y             

    2x-3y    3

Solution

x+3y = 1           

2x-3y   3

1(2x-3y) = 3(x+3y)           [after cross multiplying]

2x-3y = 3x+9y

2x - 3x = 9y + 3y

-x = 12y

¹-x = 12y

₁-1    -1 ₁

 x = -12y

     

x = -12y

y       y

x = -12

y    

Hence ^x/_y = -12  answer.          

TRY THIS......................

If  x+2y = 1            find  ^x/y             

    x- 2y     5