Question 14844
You first need to move all the w's to one side and the numbers to the other. 
You should get:
{{{5.4w-9.8w=-2.8-8.2}}}
Just simplify and solve
{{{-4.4w=-11}}}
{{{w=2.5}}}
You can check by plugging 2.5 back in for w
{{{5.4*(2.5)+8.2=9.8*(2.5)-2.8}}}
{{{13.5+8.2=24.5-2.8}}}
{{{21.7=21.7}}}
Since the equation is true, then that means you have the right number for w
Your final answer should be {{{w=2.5}}}
Hope this helps!