Question 1(h)

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

2n + 1 = 11

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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, 2n + 1 = 11 is an equation.

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

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