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Simplifying x2 + 4xn = 21 Reorder the terms: 4nx + x2 = 21 Solving 4nx + x2 = 21 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1x2' to each side of the equation. 4nx + x2 + -1x2 = 21 + -1x2 Combine like terms: x2 + -1x2 = 0 4nx + 0 = 21 + -1x2 4nx = 21 + -1x2 Divide each side by '4x'. n = 5.25x-1 + -0.25x Simplifying n = 5.25x-1 + -0.25x
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