The Latin root word **equ** means “equal.” Soon enough you will learn to **equ**ate **equ** with “equal”—especially since the meaning of the root **equ**, “**equ**al,” contains the root itself!

Math classes are filled with words that have the Latin root word **equ** in them. Math teachers talk about **equ**ations all the time, which are expressions like x = 2y or y = mx + b, where both sides of the **equ**ation are “equal” to one another. Indeed, if x = y – 2, then you can **equ**ate x with a number that is 2 less than y, which means that x “equals” y – 2. Geometry teachers love to talk about **equ**ilateral triangles, whose three sides are “equal” in length to one another. This makes the measurement of each side **equ**ivalent, or “equal” in value to each other.

Not to be outdone by math teachers, teachers of geography have terms with **equ** meaning “equal” in them as well. Consider the nearly 25,000-mile line of latitude, the **equ**ator, which is of “equal” distance to or from each pole, thereby dividing the Earth into “equal” halves. The vernal (spring) and autumnal (fall) **equ**inoxes fall on days when there are an “equal” number of hours of daylight and darkness due to the fact that the sun is standing right over the **equ**ator.

Government teachers often chat about **equ**ality of humans, meaning that all humans are created “equal.” Most governments, unfortunately, do not do an ad**equ**ate job, or “equal” to what is needed, when it comes to treating all of its citizens “equally.” Imagine if all humans were indeed treated equally—what **equ**animity would arise from that! **Equ**animity is a state of “equal” mind, that is, a mind that is not agitated or imbalanced but rather is even and therefore peaceful. Then the world would be more in a state of **equ**ilibrium, or “equally” balanced so that no one would feel mistreated—how great would that be?

You should now feel “equal” to the task of recognizing the root word **equ**, giving you a pleasant state of linguistic **equ**animity!

**equal**: of being the same, or “equal”**equation**: condition of two sides of a mathematical expression being “equal” to one another**equate**: to make two things “equal” to one another**equilateral**: having sides that are “equal”**equivalent**: having “equal” value**equator**: line of latitude which divides planet Earth into “equal” halves**equinox**: a time of “equal” light and darkness**equality**: state or condition of being “equal”**adequate**: “equal” to what is needed**equanimity**: a state of the mind being “equal” or peaceful**equilibrium**: a state of being “equally” or evenly balanced