Alternative Equation Formats

$${\displaystyle \begin{array}{rrrrrrrrrrrrrrrr}\text{maximize}& 6x_1^1& +& 8x_2^1& & & +& 5x_3^2& +& 9x_4^2& & & & & +& 8x_5^3\\ \text{subject to}& & & x_2^1& -<!--\; -\; --><span\; class="Comment\_comment\_\_N0+Yl"></span>& x_2^2& & & & & & & & & & & =0\\ & & & & & & & x_3^2& & & -<!--\; -\; --><span\; class="Comment\_comment\_\_N0+Yl"></span>& x_3^3& & & & & =0\\ & & & & & & & & & x_4^2& & & -<!--\; -\; --><span\; class="Comment\_comment\_\_N0+Yl"></span>& x_4^3& & & =0\\ & 8x_1^1& & & & & & & & & & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & 8x_1^1& +& 5x_2^1& & & & & & & & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & 5x_2^2& +& 3x_3^2& & & & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & 5x_2^2& +& 3x_3^2& +& 4x_4^2& & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & & & & & & & 3x_3^3& +& 4x_4^3& +& 3x_5^3& \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & & & & & & & & & & & x_i^b& \in <!--\; \in \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>\{0,1\}i\in <!--\; \in \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>I,b\in <!--\; \in \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>B_i\end{array}}$$

$${\displaystyle \begin{array}{rrrrrrrrrrrrrrrr}\text{maximize}& 6x_1^1& +& 8x_2^1& & & +& 5x_3^2& +& 9x_4^2& & & & & +& 8x_5^3\\ \text{subject to}& & & x_2^1& -<!--\; -\; --><span\; class="Comment\_comment\_\_N0+Yl"></span>& x_2^2& & & & & & & & & & & =0\\ & & & & & & & x_3^2& & & -<!--\; -\; --><span\; class="Comment\_comment\_\_N0+Yl"></span>& x_3^3& & & & & =0\\ & & & & & & & & & x_4^2& & & -<!--\; -\; --><span\; class="Comment\_comment\_\_N0+Yl"></span>& x_4^3& & & =0\\ & 8x_1^1& & & & & & & & & & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & 8x_1^1& +& 5x_2^1& & & & & & & & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & 5x_2^2& +& 3x_3^2& & & & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & 5x_2^2& +& 3x_3^2& +& 4x_4^2& & & & & & & \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & & & & & & & 3x_3^3& +& 4x_4^3& +& 3x_5^3& \le <!--\; \le \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>10\\ & & & & & & & & & & & & & & & x_i^b& \in <!--\; \in \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>\{0,1\}i\in <!--\; \in \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>I,b\in <!--\; \in \; --><span\; class="Comment\_comment\_\_N0+Yl"></span>B_i\end{array}}$$

\[ \begin{array}{rrrrrrrrrrrrrrrrl} \mbox{maximize} & 6 x_1^1 & + & 8 x_2^1 & & & + & 5 x_3^2 & + & 9 x_4^2 & & & & & + & 8 x_5^3 \\ \mbox{subject to} & & & x_2^1 & - & x_2^2 & & & & & & & & & & & = 0 \\ & & & & & & & x_3^2 & & & - & x_3^3 & & & & & = 0 \\ & & & & & & & & & x_4^2 & & & - & x_4^3 & & & = 0 \\ & 8 x_1^1 & & & & & & & & & & & & & & & \leq 10 \\ & 8 x_1^1 & + & 5 x_2^1 & & & & & & & & & & & & & \leq 10 \\ & & & & & 5 x_2^2 & + & 3 x_3^2 & & & & & & & & & \leq 10 \\ & & & & & 5 x_2^2 & + & 3 x_3^2 & + & 4 x_4^2 & & & & & & & \leq 10 \\ & & & & & & & & & & & 3 x_3^3 & + & 4 x_4^3 & + & 3 x_5^3 & \leq 10 \\ & & & & & & & & & & & & & & & x_ i^ b & \in \{ 0,1\} \ i \in I, b \in B_ i\\ \end{array} \]