Question #a2ba2

1 Answer
Sep 19, 2017

#w=-1#

Explanation:

Firstly, lets get rid of the brackets and add all the like terms together.
#2/w +5= 5/w+5+3#
#2/w+5=5/w+8#

Next lets subtract 5 from each side, to get
#2/w+5-color(red)(5)=5/w+8-color(red)(5)#
#2/w=5/w+3#

Then we subtract #5/w# from both sides, to get
#2/w - color(red)(5/w)=5/w -color(red)(5/w)+3#
#-3/w=3#

Now we multiply both sides by #w#, as a setup for the next step, so
#-3/w *color(red)(w)=3*color(red)(w)#
#-3=3w#

The last step is to divide both sides by 3 so as to isolate #w#,
#-3/color(red)(3)=(cancel(3)w)/cancel(color(red)(3))#
#-1/1=w/1#

#-1=w#, and there is your answer.

How I multiplied the fractions is because #a/b*c/d=(ab)/(cd)#.
How I divided the fractions is because
#a/b ÷ c = a/b * 1/c = a/(bc)#

I hope I helped!