Question 1(d)

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

$(7 \times 3) - 19 = 8$

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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, $(7 \times 3) - 19 = 8$ is an equation.

A variable is a letter that represents an unknown quantity which can take any value. There is no variable in the given equation.

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Question 1(d)

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

$(7 \times 3) - 19 = 8$

Question 1(a)

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

$17 = x + 7$

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

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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.

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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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