equal sign
US /ˈiː.kwəl saɪn/
UK /ˈiː.kwəl saɪn/

1.
a symbol (=) used to show that two things are the same in value, quantity, or meaning
:
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In mathematics, the equal sign indicates that the expression on the left has the same value as the expression on the right.
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Press the equal sign on the calculator to get the result.