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Solve the simultaneous equations: 5x-3y ...

Solve the simultaneous equations: `5x-3y = 8, 3x+ y =2`

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To solve the simultaneous equations \(5x - 3y = 8\) and \(3x + y = 2\), we will use the elimination method. Here’s a step-by-step solution: ### Step 1: Write down the equations We have the following two equations: 1. \(5x - 3y = 8\) (Equation 1) 2. \(3x + y = 2\) (Equation 2) ### Step 2: Make the coefficients of \(y\) the same To eliminate \(y\), we can manipulate the second equation. We will multiply Equation 2 by 3 to match the coefficient of \(y\) in Equation 1. \[ 3(3x + y) = 3(2) \] This gives us: \[ 9x + 3y = 6 \quad \text{(Equation 3)} \] ### Step 3: Add the two equations Now we will add Equation 1 and Equation 3 together: \[ (5x - 3y) + (9x + 3y) = 8 + 6 \] This simplifies to: \[ 5x + 9x - 3y + 3y = 14 \] \[ 14x = 14 \] ### Step 4: Solve for \(x\) Now, we can solve for \(x\): \[ x = \frac{14}{14} = 1 \] ### Step 5: Substitute \(x\) back into one of the original equations We will substitute \(x = 1\) back into Equation 2 to find \(y\): \[ 3(1) + y = 2 \] \[ 3 + y = 2 \] ### Step 6: Solve for \(y\) Now, we can solve for \(y\): \[ y = 2 - 3 \] \[ y = -1 \] ### Final Answer The solution to the simultaneous equations is: \[ x = 1, \quad y = -1 \]
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