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Solve the linear system by using the substitution method. Describe the solu \[ \begin{array}{l}3 x+y=8 \\ 6 x+2 y=10\end{array} \] The system has \( \begin{array}{l}\text { no solution } \\ \text { one solution } \\ \text { infinite solutions }\end{array} \)

Ask by Mcguire Dickson. in the United States
Feb 03,2025

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Tutor-Verified Answer

Answer

The system has no solution.

Solution

Solve the system of equations \( 3x+y=8;6x+2y=10 \). Solve the system of equations by following steps: - step0: Solve using the substitution method: \(\left\{ \begin{array}{l}3x+y=8\\6x+2y=10\end{array}\right.\) - step1: Solve the equation: \(\left\{ \begin{array}{l}y=8-3x\\6x+2y=10\end{array}\right.\) - step2: Substitute the value of \(y:\) \(6x+2\left(8-3x\right)=10\) - step3: Simplify: \(16=10\) - step4: Calculate: \(\left\{ \begin{array}{l}x \in \varnothing \\y \in \varnothing \end{array}\right.\) - step5: Rewrite: \((x, y) \in \varnothing\) The system of equations has no solution. Therefore, the system has no solution.

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Mind Expander

To solve the linear system using the substitution method, let's start with the first equation \(3x + y = 8\). We can express \(y\) in terms of \(x\): \[ y = 8 - 3x. \] Now, substitute this expression for \(y\) into the second equation \(6x + 2y = 10\): \[ 6x + 2(8 - 3x) = 10. \] Expanding this gives: \[ 6x + 16 - 6x = 10. \] This simplifies to: \[ 16 = 10. \] Since this is a contradiction (16 does not equal 10), the system has no solutions. The system of equations does not intersect at any point in a two-dimensional graph, meaning the two lines represented by these equations are parallel. Always remember that if you get a false statement when attempting to solve, it indicates there are no solutions!

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