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If 2x+10 = 40, then find the value of x....

If `2x+10 = 40`, then find the value of `x`.

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The correct Answer is:
`x = 15`
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PEARSON IIT JEE FOUNDATION-LINEAR EQUATIONS AND INEQUATIONS -EXAMPLES
  1. If 2x+10 = 40, then find the value of x.

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  2. If 5x - 8 = 3x + 22, then find the value of x

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  3. A teacher has 45 chocolates. After giving two chocolates to each stude...

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  4. If 3x + 5y = 21 and 2x +3y = 13, then find the values of x and y.

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  5. If 5x-2y = 17 and 3x +y =8, then find the values of x and y.

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  6. Solve 4x + 3y = 11 and 3x + 4y = 10.

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  7. Draw the graph of the equation y = 3x where R is the replacement set f...

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  8. Draw the graph of the equation x+y = 3 and y -x =1. What do you observ...

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  9. For what values of k is the system of equations 3x -2 (k-1)y =30 and ...

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  10. The sum of two numbers is 24 and the difference between them is 10. Wh...

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  11. In a fraction if both the numerator and the denominator are decreased ...

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  12. The sum of the digits of a two digit numbers is 9. If 9 is subtracted...

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  13. The difference between the present age of a person and his son is 24 y...

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  14. The total cost of a dozen apples and half a dozen oranges cannot excee...

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  15. There are some rose flowers in a garden and some bees hovering around....

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  16. Runs scored by Girish in a match are 10 more than the balls faced by V...

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  17. Ashok had a total of ₹ 60 in the form of ₹ 5 coins, ₹ 2 coins and ₹ 1 ...

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  18. There are 48 questions in a test. Each correct answer fetches 1 mark, ...

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  19. Draw the graphs y le -1 and y ge 2.5 in the Cartesian plane.

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  20. Draw the graph of x gt -2 in the Cartesian plane.

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