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Simplifying r * r = ((r * r) + -1(9)) + 484 Multiply r * r r2 = ((r * r) + -1(9)) + 484 Multiply r * r r2 = ((r2) + -1(9)) + 484 r2 = (r2 + -1(9)) + 484 Multiply -1 * 9 r2 = (r2 + -9) + 484 Reorder the terms: r2 = (-9 + r2) + 484 Remove parenthesis around (-9 + r2) r2 = -9 + r2 + 484 Reorder the terms: r2 = -9 + 484 + r2 Combine like terms: -9 + 484 = 475 r2 = 475 + r2 Add '-1r2' to each side of the equation. r2 + -1r2 = 475 + r2 + -1r2 Combine like terms: r2 + -1r2 = 0 0 = 475 + r2 + -1r2 Combine like terms: r2 + -1r2 = 0 0 = 475 + 0 0 = 475 Solving 0 = 475 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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