Solve the system by elimination. Enter your answer as an ordered pair or type none or infinite. \( \left\{\begin{array}{c}8 x-3 y=-11 \\ 2 x-5 y=27\end{array}\right. \)
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The Deep Dive
To solve the system by elimination, we can first manipulate the equations to eliminate one variable. Let's multiply the second equation by 4 so that the coefficients of \(x\) in both equations will match: 1. First equation: \(8x - 3y = -11\) 2. Second equation (multiplied by 4): \(8x - 20y = 108\) Now, we subtract the first equation from the second: \((8x - 20y) - (8x - 3y) = 108 - (-11)\) This simplifies to: \(-20y + 3y = 108 + 11\) \(-17y = 119\) Now, divide both sides by \(-17\): \(y = -\frac{119}{17}\) Next, substitute \(y\) back into one of the original equations to find \(x\). We can use the first equation: \(8x - 3\left(-\frac{119}{17}\right) = -11\) This becomes: \(8x + \frac{357}{17} = -11\) To remove the fraction, multiply the entire equation by 17: \(136x + 357 = -187\) Now, solve for \(x\): \(136x = -187 - 357\) \(x = -\frac{544}{136} = -4\) Finally, we have the solution as the ordered pair: \((-4, -\frac{119}{17})\)
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