Question 1208697
The final examination may count as 2x.  that is two tests at x score each; but this is doubled, so 2x.


{{{(2x+80+83+71+61+95)/7=80}}}

{{{(2x+390)/7=80}}}

{{{2x+390=560}}}

{{{2x=560-390}}}

{{{2x=170}}}

{{{highlight(x=85)}}}