Question 44774
{{{0.5(2.6x-4)+ 2.3(1.4x-5)=0}}}
First expand the brackets:
{{{(1.3x-2)+(3.22x-11.5)=0}}}
Now simplify:
{{{4.52x-13.5=0}}}
{{{4.52x=13.5}}}
{{{x=13.5/4.52}}}
{{{x=2.987}}}

I hope this helps.
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk
Adam