Question

If 10 be added to four times a certain number, the result is 5 less than five times the number.
Find the number.
bor is 20 less than the original number Find the original number​

Answer 1

Step-by-step explanation:

Let the number be x.

According to the question we can write as

10+4x=5x−5

On rearranging

4x−5x=−5−10

−x=−15

So x = 15

Answer 2

Question:

• If 10 be added to four times a certain number, the result is 5 less than five times the number. Find the number.

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Solution:

• Let the required number be x.

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As per the first statement given in the question, the equation will be

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⟹ 4x + 10 = 5x - 5

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Now, solving the equation for the value of x.

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⟹ 4x + 10 = 5x - 5

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⟹ 10 + 5 = 5x - 4x

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⟹ 15 = x

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⟹ x = 15

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Therefore,

• Required number is 15.

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For checking our answer, let us verify it !!

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Verification:

• Putting x = 15 in the equation

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→ 4x + 10 = 5x - 5

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→ 4(15) + 10 = 5(15) - 5

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→ 60 + 10 = 75 - 5

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→ 70 = 70

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→ L.H.S = R.H.S

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Hence,

• The required number is 15.

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