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Simplifying r4 + 5x2 + 4 = 0 Reorder the terms: 4 + r4 + 5x2 = 0 Solving 4 + r4 + 5x2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + r4 + -4 + 5x2 = 0 + -4 Reorder the terms: 4 + -4 + r4 + 5x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + r4 + 5x2 = 0 + -4 r4 + 5x2 = 0 + -4 Combine like terms: 0 + -4 = -4 r4 + 5x2 = -4 Add '-5x2' to each side of the equation. r4 + 5x2 + -5x2 = -4 + -5x2 Combine like terms: 5x2 + -5x2 = 0 r4 + 0 = -4 + -5x2 r4 = -4 + -5x2 Simplifying r4 = -4 + -5x2 Reorder the terms: 4 + r4 + 5x2 = -4 + -5x2 + 4 + 5x2 Reorder the terms: 4 + r4 + 5x2 = -4 + 4 + -5x2 + 5x2 Combine like terms: -4 + 4 = 0 4 + r4 + 5x2 = 0 + -5x2 + 5x2 4 + r4 + 5x2 = -5x2 + 5x2 Combine like terms: -5x2 + 5x2 = 0 4 + r4 + 5x2 = 0 The solution to this equation could not be determined.
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