Answered

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Malachy was thinking of a number. Malachy divides by 2, then adds 9 to get an answer of 4. What was the original number?

Sagot :

MrRoyal

Answer:

The number is -10

Step-by-step explanation:

I will answer this while I read through the question.

Let the number be x

Divide by 2

[tex]\frac{x}{2}[/tex]

Add 9 to it

[tex]\frac{x}{2} + 9[/tex]

It gives 4

[tex]\frac{x}{2} + 9 = 4[/tex]

Now, we solve for x

Collect Like Terms

[tex]\frac{x}{2} = 4-9[/tex]

[tex]\frac{x}{2} = -5[/tex]

Make x the subject

[tex]x = -5 *2[/tex]

[tex]x = -10[/tex]

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