Home
Class 7
MATHS
Simplify these expressions and find thei...

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2
3x – 5 – x + 9

Text Solution

Verified by Experts

The correct Answer is:
10
Promotional Banner

Topper's Solved these Questions

  • ALGEBRAIC EXPRESSIONS

    NAND LAL PUBLICATION|Exercise EXERCISE 12.4|4 Videos

  • ALGEBRAIC EXPRESSIONS

    NAND LAL PUBLICATION|Exercise ADDITIONAL QUESTIONS OR PRACTICE (OBJECTIVE TYPE QUESTIONS) FILL IN THE BLANKS|6 Videos

  • ALGEBRAIC EXPRESSIONS

    NAND LAL PUBLICATION|Exercise EXERCISE 12.2|29 Videos

  • EXPONENTS AND POWERS

    NAND LAL PUBLICATION|Exercise SAMPLE PAPER FOR PRACTICE |8 Videos

Similar Questions

Explore conceptually related problems

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2 3x – 5 – x + 9

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2 3a + 5 – 8a + 1

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2 2 – 8x + 4x + 4

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2 10 – 3b – 4 – 5b

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2 2a – 2b – 4 – 5 + a

Simplify the expressions and find the value if x is equal to 2 x + 7 + 4 (x – 5)

Simplify the expressions and find the value if x is equal to 2 6x + 5 (x – 2)

Simplify the expressions and find the value if x is equal to 2 3 (x + 2) + 5x – 7

Simplify the expressions and find the value if x is equal to 2 4(2x – 1) + 3x + 11

Simplify the expression and find its value when a = 5 and b = – 3. 2(a^2 + ab) + 3 – ab

NAND LAL PUBLICATION-ALGEBRAIC EXPRESSIONS -EXERCISE 12.3
  1. If a = 2, b = – 2, find the value of: a^2 + b^2

    Text Solution

    |

  2. If a = 2, b = – 2, find the value of: a^2 + ab + b^2

    Text Solution

    |

  3. If a=2,b=-2 find the value of a^(2)-b^(2)

    Text Solution

    |

  4. When a = 0, b = – 1, find the value of the given expressions 2a + 2b

    Text Solution

    |

  5. When a = 0, b = – 1, find the value of the given expressions 2a^2 + b^...

    Text Solution

    |

  6. When a = 0, b = – 1, find the value of the given expressions 2a^2b + 2...

    Text Solution

    |

  7. When a = 0, b = – 1, find the value of the given expressions a^2 + ab ...

    Text Solution

    |

  8. Simplify the expressions and find the value if x is equal to 2 x + 7 +...

    Text Solution

    |

  9. Simplify the expressions and find the value if x is equal to 2 3 (x +...

    Text Solution

    |

  10. Simplify the expressions and find the value if x is equal to 2 6x + 5 ...

    Text Solution

    |

  11. Simplify the expressions and find the value if x is equal to 2 4(2x – ...

    Text Solution

    |

  12. Simplify these expressions and find their values if x = 3, a = – 1, b ...

    Text Solution

    |

  13. Simplify these expressions and find their values if x = 3, a = – 1, b ...

    Text Solution

    |

  14. Simplify these expressions and find their values if x = 3, a = – 1, b ...

    Text Solution

    |

  15. Simplify these expressions and find their values if x = 3, a = – 1, b ...

    Text Solution

    |

  16. Simplify these expressions and find their values if x = 3, a = – 1, b ...

    Text Solution

    |

  17. If z = 10, find the value of z^3 – 3(z – 10).

    Text Solution

    |

  18. If p = – 10, find the value of p^2 – 2p – 100

    Text Solution

    |

  19. What should be the value of a if the value of 2x^2 + x – a equals to 5...

    Text Solution

    |

  20. Simplify the expression and find its value when a = 5 and b = – 3. 2(a...

    Text Solution

    |