Learn English – What does “by eyeball” mean?,

expressionsmeaning-in-context

In the book I am studying I have found the following sentence:

It is often easier to solve the equation by eyeball

What does by eyeball mean?

Best Answer

The word easier is your clue to the eyeball method of the quick scan, using a rough surface assessment instead of any rigor such as algebra.

Example: Say you need two equations, and you have x + y = 3, and 2x + 2y = 6. By eyeball, without math, you might see you have really only one unique equation, and cannot solve the problem yet.

Definition of eyeball:

To measure or estimate roughly by sight: eyeballed the area of the wall that needed paint. American Heritage Dictionary, 5th Ed.

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