It was invented in 1557 by Welshman Robert Recorde.
The equals sign (=) is usually attributed to Robert Recorde, who introduced it in a treatise on arithmetic called The Whetstone of Witte (1557).
An expression, or, more pedantically, inequalities.
A mathematical expression has numbers and operation signs with no equal sign. Equations, on the other hand, do contain equal signs.
Multiply each term of the binomial by the monomial. Be particularly careful with signs: (+ times +) or (- times -) equals plus or Like signs = + (+ times -) or (- times +) equals minus or Unlike signs = -
12 signs of the Zodiac
12 = signs of the Zodiac
me
no algebraic expressions do not have equal signs but equations do.
An expression, or, more pedantically, inequalities.
Not until it equals something. Equations have equals signs.
A person
It was invented in the 20th century
A mathematical expression has numbers and operation signs with no equal sign. Equations, on the other hand, do contain equal signs.
in 1920
It was invented, not discovered.
Multiply each term of the binomial by the monomial. Be particularly careful with signs: (+ times +) or (- times -) equals plus or Like signs = + (+ times -) or (- times +) equals minus or Unlike signs = -
Patrick tamer bowie invented led signs in 1979
Robert Yeaman in 1345