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Which of the following equations have infinitely many solutions? Choose all answers that apply: A \( -46 x-23=46 x+23 \) (B) \( -46 x+23=46 x+23 \) (C) \( 46 x+23=46 x+23 \) (D \( 46 x-23=46 x+23 \)

Ask by Mcdonald Vaughn. in the United States
Feb 27,2025

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Answer

The equation \(46x + 23 = 46x + 23\) has infinitely many solutions.

Solution

To determine which of the given equations have infinitely many solutions, we need to analyze each equation step by step. An equation has infinitely many solutions if it simplifies to a true statement (like \(0 = 0\)) for all values of \(x\). Let's analyze each equation: ### A. \( -46x - 23 = 46x + 23 \) 1. Rearranging gives: \[ -46x - 46x = 23 + 23 \] \[ -92x = 46 \] \[ x = -\frac{46}{92} = -\frac{1}{2} \] This equation has a single solution, not infinitely many. ### B. \( -46x + 23 = 46x + 23 \) 1. Rearranging gives: \[ -46x - 46x = 23 - 23 \] \[ -92x = 0 \] \[ x = 0 \] This equation also has a single solution, not infinitely many. ### C. \( 46x + 23 = 46x + 23 \) 1. This equation is already in the form \(A = A\), which is always true for any value of \(x\). Thus, this equation has infinitely many solutions. ### D. \( 46x - 23 = 46x + 23 \) 1. Rearranging gives: \[ 46x - 46x = 23 + 23 \] \[ 0 = 46 \] This is a false statement, indicating that there are no solutions. ### Conclusion The only equation that has infinitely many solutions is: - **C** \( 46x + 23 = 46x + 23 \) So the answer is **C**.

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Beyond the Answer

The equation in option (C) \( 46 x + 23 = 46 x + 23 \) is true for all values of \( x \), meaning it has infinitely many solutions since both sides are identical. Furthermore, option (B) \( -46 x + 23 = 46 x + 23 \) simplifies to \( -92 x = 0 \), leading to a unique solution \( x = 0 \). The other equations either lead to a contradiction or a unique solution, thus not having infinitely many solutions. To solve these types of equations efficiently, it's often helpful to simplify each equation step-by-step, isolating \( x \) as much as possible. Always check both sides of the equation afterward; if they become identical, congratulations—you have found infinite solutions! On the other hand, if you reach a contradiction like \( 0 = 1 \), you know those equations only have finite solutions or none at all.

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