Question 1(o)

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

$7 - x = 5$

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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, $7 - x = 5$ 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 x.

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

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