ALGEBRA 1

If  x+4y = 1            find  ^x/y             

    x-3y     4

solution

x+4y = 1           

x-3y     4

1(x-3y) = 4(x+4y)           [after cross multiplying]

x-3y = 4x+16y

x - 4x = 16y + 3y

-3x = 19y

¹-3x =   19y         [dividing by -3 both sides]

₁-3        -3

x =   19y         

        -3

      

x =     19y ¹   [dividing by y both sides]    

y       -3y ₁

x = ^-19/₃

y    

Hence ^x/_y = ^-19/₃answer.          

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

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

    x- 2y     6