what integer is tripled when 9 is added to 3 fourths of it? | MathCelebrity Forum

what integer is tripled when 9 is added to 3 fourths of it?

math_celebrity

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what integer is tripled when 9 is added to 3 fourths of it?

Let the integer be n. Tripling an integer means multiplying it by 3. We're given:
3n = 3n/4 + 9

Since 3 = 12/4, we have:
12n/4 = 3n/4 + 9

Subtract 3n/4 from each side:
9n/4 = 9

Typing this equation into the search engine, we get:
n = 4
 
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