Question 1(k)

State whether the given expression is an equation or not.Give reason for your answer. Identify the variable in the given expression.

20 = 5y

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Solution

An equation is a mathematical statement that shows the equality of two expressions. An equation has an equal sign (=) between its left hand side and right hand side. Hence, 20 = 5y is an equation.

A variable is a letter that represents an unknown quantity which can take any value. Therefore, the variable in the given equation is y.

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