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Simplifying -7r2 + 140 + -700 = 0 Reorder the terms: 140 + -700 + -7r2 = 0 Combine like terms: 140 + -700 = -560 -560 + -7r2 = 0 Solving -560 + -7r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '560' to each side of the equation. -560 + 560 + -7r2 = 0 + 560 Combine like terms: -560 + 560 = 0 0 + -7r2 = 0 + 560 -7r2 = 0 + 560 Combine like terms: 0 + 560 = 560 -7r2 = 560 Divide each side by '-7'. r2 = -80 Simplifying r2 = -80 Reorder the terms: 80 + r2 = -80 + 80 Combine like terms: -80 + 80 = 0 80 + r2 = 0 The solution to this equation could not be determined.
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