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Phantasy [73]
3 years ago
11

Find a number which decreased by 12 equals 3 times it’s opposite

Mathematics
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer:

The number is 3.

Step-by-step explanation:

To find : A number which decreased by 12 equals 3 times it’s opposite ?

Solution :

Let the number be 'x'.

It's opposite is '-x'.

A number which decreased by 12 equals 3 times it’s opposite

i.e. x - 12 = 3(-x)

Solving the equation,

x-12=-3x

x+3x=12

4x=12

x=\frac{12}{4}

x=3

Therefore, the number is 3.

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