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\( \begin{array}{l}y=5 x-3 \\ x=y-5 \longrightarrow x=5 x-3-5 \\ \text { (1)) What is one way you can use substitution to solve this problem? } \\ \text { (1)) Substitute } 5 x-3 \text { for } y \\ \text { (1) Now, find the solution to the system of equations, } \\ (\square, \square)\end{array} \) ?

Ask by Bolton Malone. in the United States
Jan 24,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

The solution to the system of equations is \( (2, 7) \).

Solution

To solve the system of equations using substitution, we will follow these steps: 1. **Identify the equations:** We have the following two equations: \[ y = 5x - 3 \quad (1) \] \[ x = y - 5 \quad (2) \] 2. **Substitute \(y\) from equation (1) into equation (2):** We will substitute \(y\) in equation (2) with the expression from equation (1): \[ x = (5x - 3) - 5 \] 3. **Simplify the equation:** Now, we simplify the equation: \[ x = 5x - 3 - 5 \] \[ x = 5x - 8 \] 4. **Rearrange the equation:** To isolate \(x\), we can rearrange the equation: \[ x - 5x = -8 \] \[ -4x = -8 \] \[ x = 2 \] 5. **Substitute \(x\) back to find \(y\):** Now that we have \(x\), we can substitute it back into equation (1) to find \(y\): \[ y = 5(2) - 3 \] \[ y = 10 - 3 \] \[ y = 7 \] 6. **Final solution:** The solution to the system of equations is: \[ (x, y) = (2, 7) \] Thus, the final answer is \((2, 7)\).

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To use substitution to solve the system of equations, start by substituting \(y\) in the second equation with \(5x - 3\). This gives you the equation \(x = (5x - 3) - 5\). Simplifying this equation leads to \(x = 5x - 8\), allowing you to rearrange and solve for \(x\) to find its value. After simplifying the equation to find \(x\), you can substitute this value back into the first equation \(y = 5x - 3\) to find the corresponding value of \(y\). For instance, if you find \(x = 1\), substituting gives \(y = 5(1) - 3 = 2\). Thus, your solution to the system is \((1, 2)\).

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