Question 972253
the answer is (-5y+4)/10


see the attached worksheet.


<img src = "http://theo.x10hosting.com/2015/052601.jpg" alt="$$$" </>


step 1 is the original equation.


in step 2 we multiply everything by 10 and remove the parentheses.


in step 3 we combine like terms.


in step 4 we divide everything by 10.


we are left with (-5y+4)/10


what i did was multiply everything by 10/10 which is the same as multiplying everything by 1.


i first multiplied everything by 10.


after i was done wtih that operation, i then divided everything by 10.


the end result was that i multiplied everything by 10/10.


the whole idea was to get everything under the common denominator of 10.


i check the answer and it's good.


you can check yourself by replacing y with any random value.


evaluate the original expression using that value of y and evalutate the final expression using that value of y and you should get the same answer.