text: If we let '"`UNIQ--postMath-000012FC-QINU`"' be the matrix of coefficients '"`UNIQ--postMath-000012FD-QINU`"', '"`UNIQ--postMath-000012FE-QINU`"' be the vector of total output, and '"`UNIQ--postMath-000012FF-QINU`"' be the vector of final demand, then our expression for the economy becomes