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Four times a number diminished by 5 equa...

Four times a number diminished by 5 equals 19. Find the number.

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To solve the equation "Four times a number diminished by 5 equals 19," we can follow these steps: ### Step 1: Define the variable Let \( x \) be the unknown number we need to find. ### Step 2: Write the equation According to the problem, "four times a number diminished by 5 equals 19" can be expressed as: \[ 4x - 5 = 19 \] ### Step 3: Isolate the term with the variable To isolate \( 4x \), we need to get rid of the -5 on the left side. We do this by adding 5 to both sides of the equation: \[ 4x - 5 + 5 = 19 + 5 \] This simplifies to: \[ 4x = 24 \] ### Step 4: Solve for \( x \) Now, we need to find \( x \) by dividing both sides of the equation by 4: \[ x = \frac{24}{4} \] This simplifies to: \[ x = 6 \] ### Conclusion The number is \( 6 \). ---
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ICSE-LINEAR EQUATIONS-EXERCISE 14B
  1. Four times a number diminished by 5 equals 19. Find the number.

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  2. Three-sevenths of a number is 12. Find the number.

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  3. A number increased by 9 gives 43. Find the number.

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  4. A number diminished by 11 gives 57. Find the number.

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  5. Thrice a number increased by 6 equals 39. Find the number.

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  6. Three-fourths of a number exceeds its one-third by 15. Find the number...

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  7. A number when divided by 4 is reduced by 21. Find the number.

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  8. A number is as much greater than 36 as is less than 86. Find the numbe...

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  9. A number exceeds its four-sevenths by 18. Find the number.

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  10. A number exceeds 20% of itself by 40. Find the number.

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  11. If 10 be added to four times a certain number, the result is 5 less th...

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  12. One fourth of a number is increased by 7 and the result is multiplied ...

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  13. The sum of two consecutive odd numbers is 56. Find the numbers.

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  14. The sum of three consecutive even numbers is 48. Find the numbers.

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  15. One of the two numbers exceeds the other by 9. Four times the smaller ...

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  16. In a class of 40 pupils, the number of girls is three-fifths of the nu...

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  17. The length of a rectangular park is three times its breadth. If the pe...

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  18. Two equal sides of a triangle are each 5 metres less than twice the th...

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  19. Two supplementary angles differ by 44^(@). Find the angles.

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  20. The total cost of 3 tables and 2 chairs is Rs. 8745. If a table costs ...

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  21. The denominator of a fraction is 3 more than the numerator. If 2 is ad...

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