Understanding the Expression R(2) = 3(4) + 4 + 1 = 17: A Clear Breakdown for Clarity

Mathematics often presents seemingly complex expressions that, once unpacked, reveal elegant simplicity. One such expression is:

R(2) = 3(4) + 4 + 1 = 17

Understanding the Context

At first glance, this equation might look intimidating, especially the way the variables and operations interweave. But with a step-by-step breakdown, the computation becomes clear, revealing not only the result but also the structured logic behind it.

What Does R(2) Represent?

The notation R(2) here likely represents a function, variable, or a defined mathematical expression evaluated at a specific input (in this case, input = 2). However, based on the formula:

R(2) = 3(4) + 4 + 1

R(2) &= 3(4) + 4 + 1 = 12 + 4 + 1 = 17, \\

Key Insights

the expression is to be computed using direct substitution and basic arithmetic.

Breaking Down the Expression Step-by-Step

  1. Substitution of Input
    Since R(2) uses parentheses indicating input 2, we treat all numbers inside the parentheses as constants scaled or multiplied accordingly.

  2. Evaluate Multiplication First (Order of Operations)
    According to the PEMDAS/BODMAS rules (Parentheses/Brackets, Exponents, Multiplication/Division, Addition/Subtraction), multiplication comes before addition:

    • 3 × 4 = 12
      So the expression becomes:
      R(2) = 12 + 4 + 1

  3. Perform Addition Sequentially

    • 12 + 4 = 16
    • 16 + 1 = 17

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Final Thoughts

Thus,
R(2) = 17

Why Is This Expression Significant?

While R(2) might appear as a standalone computation, it reflects common patterns in algebra and function evaluation:

  • Function Evaluation with Components: R(2) models a function that combines scaling, addition, and constants, simulating real-world scenarios like cost calculations or weighted sums.
  • Order of Operations: The correct application of multiplication before addition ensures accurate results, emphasizing the importance of rule adherence in mathematical reasoning.
  • Modular Thinking: Breaking down complex expressions into smaller parts enhances problem-solving skills and builds confidence in handling algebraic statements.

Practical Example and Applications

Imagine R(t) represents the total cost calculation where:

  • 3 items at $4 each → 3 × $4 = $12,
  • Plus $4,
  • Plus a $1 fee.

Then R(2) doesn't specify multiple inputs but classifies evaluations at a given setup — useful in budgeting models, academic problems, or coding functions.

Final Thoughts

The equation R(2) = 3(4) + 4 + 1 = 17 is an ideal example of how well-structured arithmetic and algebraic principles simplify seemingly complex expressions. By following order of operations and clear substitution, we confirm that combinations of numbers and operations reliably yield predictable results — a foundational concept in mathematics and computational thinking.