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The difference between LCM and HCF of 48 and 60 is:

Mathematics

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Step-by-step solution

4 steps

Here's how to solve question 46:

  1. Distribute the −2-2 into the parentheses.

    5−2(3x−1)=−135 - 2(3x - 1) = -13 5−(2×3x)−(2×−1)=−135 - (2 \times 3x) - (2 \times -1) = -13 5−6x+2=−135 - 6x + 2 = -13
  2. Combine the constant terms on the left side of the equation.

    (5+2)−6x=−13(5 + 2) - 6x = -13 7−6x=−137 - 6x = -13
  3. Subtract 7 from both sides of the equation to isolate the term with xx.

    7−6x−7=−13−77 - 6x - 7 = -13 - 7 −6x=−20-6x = -20
  4. Divide both sides by −6-6 to solve for xx.

    −6x−6=−20−6\frac{-6x}{-6} = \frac{-20}{-6} x=206x = \frac{20}{6} x=103x = \frac{10}{3}

    The solution to the equation is x=103x = \frac{10}{3}.

    Comparing this to the given options:
    (A) 3
    (B) 4
    (C) -1
    (D) -3

    It seems there might be a discrepancy between my calculated answer and the provided options, as 103\frac{10}{3} is not among them. Let me re-check the calculation.

    Re-checking Step 1:
    5−2(3x−1)=−135 - 2(3x - 1) = -13
    5−6x+2=−135 - 6x + 2 = -13 (Correct)

    Re-checking Step 2:
    7−6x=−137 - 6x = -13 (Correct)

    Re-checking Step 3:
    −6x=−13−7-6x = -13 - 7
    −6x=−20-6x = -20 (Correct)

    Re-checking Step 4:
    x=−20−6x = \frac{-20}{-6}
    x=103x = \frac{10}{3} (Correct)

    Since the calculated answer 103\frac{10}{3} is not among the options (A) 3, (B) 4, (C) -1, (D) -3, there might be an error in the question's options or the question itself. However, if I were forced to choose the closest integer, none are particularly close.

    Let's assume there might be a typo in the question or options. If the right side was, for example, -19:
    7−6x=−197 - 6x = -19
    −6x=−26-6x = -26
    x=26/6=13/3x = 26/6 = 13/3

    If the right side was -11:
    7−6x=−117 - 6x = -11
    −6x=−18-6x = -18
    x=3x = 3 (Option A)

    Let's assume the question intended for x=3x=3 to be the answer and work backward to see what the right side of the equation would be.
    If x=3x=3:
    5−2(3(3)−1)5 - 2(3(3) - 1)
    5−2(9−1)5 - 2(9 - 1)
    5−2(8)5 - 2(8)
    5−16=−115 - 16 = -11
    So, if the equation was 5−2(3x−1)=−115 - 2(3x - 1) = -11, then x=3x=3 would be the correct answer.

    Given the options, and the common practice in multiple-choice questions to have one correct answer, it's highly probable that the intended answer was x=3x=3, and the right side of the equation was meant to be −11-11 instead of −13-13.

    However, based on the exact question provided:

    5−2(3x−1)=−135 - 2(3x - 1) = -13

    The correct solution is x=103x = \frac{10}{3}. Since this is not an option, I cannot select one of the given choices.

    If I must choose the closest integer option, 103≈3.33\frac{10}{3} \approx 3.33. Option (A) is 3.

    Given the constraint to select from the given options, and assuming a slight error in the problem statement or options, I will proceed with the assumption that x=3x=3 was the intended answer, which would mean the equation should have been 5−2(3x−1)=−115 - 2(3x - 1) = -11.

    If we strictly follow the given equation, none of the options are correct. However, if we consider the possibility of a typo in the constant on the right side, and that x=3x=3 is an option, it's the most plausible intended answer.

    Let's re-evaluate if there's any other interpretation. No, the steps are straightforward.

    I will state the calculated answer and then address the options.

    The final answer is x=103\boxed{x = \frac{10}{3}}.

    Based on the provided options, none of them match the calculated value of x=103x = \frac{10}{3}. There might be an error in the question or the options. If the equation were 5−2(3x−1)=−115 - 2(3x - 1) = -11, then x=3x=3 would be the correct answer, which is option (A).

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