Question

The sum of a number, of that number, 2 of that number, and 7 is 12 . Find the number.

Answer 1

Step-by-step explanation:

the sum is 12r

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Answer 2

Answer:

=3,4

Step-by-step explanation:

Let the numbers are a,b

a+b=7

ab=12

a,b can be given as

⇒x 2

−7x+12=0

⇒x 2

−3x−4x+12=0

⇒x(x−3)−4(x−3)=0

⇒(x−3)(x−4)=0

⇒x= 3,4

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