Question 1138056
{{{system(7b+5d=7.35,4b+6d=6.4)}}}


{{{E1+E2}}}:
{{{11b+11d=13.75}}}
{{{highlight_green(b+d=1.25)}}}


Revise System:
{{{system(b+d=1.25,2b+3d=3.2)}}}
Maybe you can continue with this?