Question 35045
assuming you mean: {{{ (r+1)/4 = (1+2r)/5 }}}
{{{ 5(r+1) = 4(1+2r) }}}
{{{ 5r+5 = 4+8r }}}
{{{ -3r+5 = 4 }}}
{{{ -3r = -1 }}}
{{{ r = (-1)/(-3) }}}
{{{ r = 1/3 }}}


jon.