Alternative Equation Formats

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

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

\[ \begin{array}{rrrrrrrrrrll} \mbox{maximize} & 6 x_1 & + & 8 x_2 & + & 5 x_3 & + & 9 x_4 & + & 8 x_5 \\ \mbox{subject to} & 8 x_1 & & & & & & & & & \leq & 10 \\ & 8 x_1 & + & 5 x_2 & & & & & & & \leq & 10 \\ & & & 5 x_2 & + & 3 x_3 & & & & & \leq & 10 \\ & & & 5 x_2 & + & 3 x_3 & + & 4 x_4 & & & \leq & 10 \\ & & & & & 3 x_3 & + & 4 x_4 & + & 3 x_5 & \leq & 10 \\ & & & & & & & & & x_ i & \in & \{ 0,1\} \quad i \in I\\ \end{array} \]