Question 935824
Difference between consecutive terms is constant.


{{{8-5-x=d}}} and {{{1+2x-8=d}}}.


{{{3-x=2x-7}}}
{{{10=3x}}}
{{{x=10/3}}}



{{{5+10/3}}}
{{{15/3+10/3}}}
{{{highlight(25/3)}}}
{{{8&1/3}}}



{{{1+2(10/3)}}}
{{{3/3+20/3}}}
{{{highlight(23/3)}}}
{{{7&2/3}}}