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if thrice a number is increased by 10, the result is 25. What is the number?
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Rktmobilezgo

If thrice a number is increased by 10, the result is 25. What is the number?

Let x be the number,

thrice a number means:

3x

increased by 10 means

+ 10

the result is 25 means

= 25

Now join them together,

3x + 10 = 25

and solve for x,

3x + 10 = 25

subtract both sides by 10

3x + 10 -10 = 25 -10

3x = 15

divide both sides by 3

3x/3 = 15/3

x = 5

[tex]\huge\boxed{\boxed{x = 5}}[/tex]

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