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Hello, quah135791 I assume you're hoping for: Click on QUOTE to see how it's done.
Originally Posted by Soroban Hello, quah135791 I assume you're hoping for: Click on QUOTE to see how it's done. thanks! one more question, what is the code for the following those three equations x_1−x_2+x_3 = 2 3x_1+x_2− x_3 = 2 2x_1+x_2− x_3 = k
Originally Posted by quah13579 thanks! one more question, what is the code for the following those three equations x_1−x_2+x_3 = 2 3x_1+x_2− x_3 = 2 2x_1+x_2− x_3 = k There are lots of ways of doing this, the one I like (because it involves remembering fewer commands that some of the others) is: Which is produced by: \begin{array}{rcrcrcr} x_1&-&x_2&+&x_3&=&2\\ 3x_1&+&x_2&-&x_3&=&2\\ 2x_1&+&x_2&-&x_3&=&k \end{array} CB
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