why the variable always x

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Guest Oct 13, 2014

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Best Answer

It is just usual to use x.

Letters such as a, b, c, d, and e are often reserved for constants and u, v, w, x, y, and z are usually reserved for variables.

There is no mathematical "rule" that requires that you use x for the variable.

geno3141 Oct 14, 2014

geno3141 · Answer 1 · 2014-10-14T12:08:17

It is just usual to use x.

Letters such as a, b, c, d, and e are often reserved for constants and u, v, w, x, y, and z are usually reserved for variables.

There is no mathematical "rule" that requires that you use x for the variable.