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Simplifying r2 + -7x + 12 = 0 Reorder the terms: 12 + r2 + -7x = 0 Solving 12 + r2 + -7x = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + r2 + -12 + -7x = 0 + -12 Reorder the terms: 12 + -12 + r2 + -7x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + r2 + -7x = 0 + -12 r2 + -7x = 0 + -12 Combine like terms: 0 + -12 = -12 r2 + -7x = -12 Add '7x' to each side of the equation. r2 + -7x + 7x = -12 + 7x Combine like terms: -7x + 7x = 0 r2 + 0 = -12 + 7x r2 = -12 + 7x Simplifying r2 = -12 + 7x Reorder the terms: 12 + r2 + -7x = -12 + 7x + 12 + -7x Reorder the terms: 12 + r2 + -7x = -12 + 12 + 7x + -7x Combine like terms: -12 + 12 = 0 12 + r2 + -7x = 0 + 7x + -7x 12 + r2 + -7x = 7x + -7x Combine like terms: 7x + -7x = 0 12 + r2 + -7x = 0 The solution to this equation could not be determined.
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