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Simplifying -10 = r2 + 0r + 12 Anything times zero is zero. -10 = r2 + 0r + 12 Reorder the terms: -10 = 0 + 12 + r2 Combine like terms: 0 + 12 = 12 -10 = 12 + r2 Solving -10 = 12 + r2 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r2' to each side of the equation. -10 + -1r2 = 12 + r2 + -1r2 Combine like terms: r2 + -1r2 = 0 -10 + -1r2 = 12 + 0 -10 + -1r2 = 12 Add '10' to each side of the equation. -10 + 10 + -1r2 = 12 + 10 Combine like terms: -10 + 10 = 0 0 + -1r2 = 12 + 10 -1r2 = 12 + 10 Combine like terms: 12 + 10 = 22 -1r2 = 22 Divide each side by '-1'. r2 = -22 Simplifying r2 = -22 Reorder the terms: 22 + r2 = -22 + 22 Combine like terms: -22 + 22 = 0 22 + r2 = 0 The solution to this equation could not be determined.
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