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Question 6(Multiple Choice Worth 1 points) (05.03 MC) Solve the following system of equations: \( \begin{array}{l}x-2 y=6 \\ 2 x-4 y=10\end{array} \)

Ask by Ryan Adkins. in the United States
Jan 24,2025

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Answer

The system has no solution because the equations are inconsistent.

Solution

The given system of equations is: \[ \begin{cases} x - 2y = 6 \\ 2x - 4y = 10 \end{cases} \] Let's analyze the equations: 1. If we multiply the first equation by 2, we get: \[ 2x - 4y = 12 \] 2. Compare this with the second equation: \[ 2x - 4y = 10 \] Since \(12 \neq 10\), the two equations are contradictory. Therefore, the system has **no solution**. **Answer:** There is no solution to the system; the equations are inconsistent.

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Mind Expander

Let’s dive into this system of equations! The first equation, \(x - 2y = 6\), can be rearranged to find \(x\) in terms of \(y\): \(x = 2y + 6\). Now, substituting \(x\) into the second equation \(2x - 4y = 10\) gives us \(2(2y + 6) - 4y = 10\). Simplifying this, we get: \(4y + 12 - 4y = 10\), which simplifies to \(12 = 10\). This contradiction means the two lines represented by the equations are parallel and do not intersect, leading to no solution! Time to roll up those sleeves and get cracking on finding solutions! One common mistake is assuming there's always an intersection point – these equations demonstrate that sometimes systems can be inconsistent, yielding no solutions. Remember to check if the coefficients are proportional; in this case, \(2\) is multiplied for \(x\) and the corresponding \(y\) terms. That's a key indicator that these lines, indeed, never meet!

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