If 54 Is Subtracted From 3 Times A Number, The Result Is 36. What Is The Number?

If 54 is subtracted from 3 times a number, the result is 36. What is the number?

Explanation

Let the number be $x$ .

According to the question:

3 x - 54 = 36

Add 54 to both sides:

3 x = 36 + 54 = 90

Divide by 3:

x = 90/3

= 30

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Simplify: (x²+x−20)/(x²−4)

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Explanation

(x²+x−20)/(x²−4)

Step 1: Factorize the numerator and denominator.