Question 60658


   2/y + 4 = -8

subtract  4 from both sides of the equation

==>  2/y = -8 - (-4)

==>  2/y = -8 + 4 { while subtracting a number from a  negative  number,
                     we should change the sign of the second number and add  
                     to the first number.    
                      Here we want to subtract  -4  from -8
                       then change the sign of  -4 and then add to -8 }



==> 2/y  =  -4   { here we are adding a positive number and a negative number.
                   then subtract the smaller number from the bigger number and 
                   put the sign of the bigger.
                    Here we have  -8  and  4.
                    then first find 8 - 4 = 4 and put the sign of  8, which is
                      negative.}


now here we want to find out the value of y

so we shopuld bring  y  to the numerator.

 so multiply both sides of the equation by  y . 

==>   y *  2/y  = y * -4

==>         2   =  -4y

now divide both sides of the equation ny  -4

==>       2/-4  =  -4y/-4

==>       1/-2  =   y

==>         y   =  -1/2


good  luck.