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Addition and Subtraction of Integers

Think of a nu...

Question

Think of a number . Multiply it by $7$ . Add $4$ to the result . Subtract $y$ from this result. What is the result?

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Solution

Let the number be $x$ .
Add $4$ to the result ,
$= x + 4$
Subtract $y$ from this result,
$= x + 4 - y$
Hence the expression is $x + 4 - y$

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