Question 1185025
Total combined perimeters,  {{{4S+2(3X+X)=28}}}

{{{4S+8X=28}}}

{{{4(S+2X)=4*7}}}

{{{S+2X=7}}}


The area of the two combined figures would be  {{{S^2+3X*X}}}

{{{S^2+3X^2}}}



Maybe something simple I do not recognize in the problem but not enough information to solve for the values of S and X.