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Sav [38]
3 years ago
9

A number increased by 9 is 13

Mathematics
1 answer:
Alborosie3 years ago
6 0

Answer:

4

Step-by-step explanation:

To find the number you have to reverse the equation

Let us call the number "x"

x + 9 = 13

So to find x we flip the equation

13 - 9 = x

Solve it

4 = x

So the missing number is 4

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