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3 years ago

What is the answer to triple a number is the s game as double the number increased by 5

Mathematics

1 answer:

kramer3 years ago

6 0

Answer:

x = 7

Step-by-step explanation:

Let x = the number. Then

"Triple a number" means 3x

"is the same as" means =

"double the number increased by 5" means 2x + 7

∴ 3x = 2x + 7

Subtract 2x from each side

x = 7

The answer is x = 7.

Check:

3 × 7 = 2 × 7 + 7

21 = 14 + 7

21 = 21

OK.

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3 years ago

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