Equals

The equals sign (=) shows that two sides of an equation have exactly the same value. It was introduced by Welsh mathematician Robert Recorde in 1557, who used two parallel lines because “noe 2 thynges can be moare equalle.”

Check whether an equation is true, or find the missing value that makes it true.

Continue exploring related topics:

• Mathematical Symbols - The Language of Mathematics
• Not Equal
• Equations - The Language of Algebra