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Simplifying -3r2 + -47 = 7 Reorder the terms: -47 + -3r2 = 7 Solving -47 + -3r2 = 7 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '47' to each side of the equation. -47 + 47 + -3r2 = 7 + 47 Combine like terms: -47 + 47 = 0 0 + -3r2 = 7 + 47 -3r2 = 7 + 47 Combine like terms: 7 + 47 = 54 -3r2 = 54 Divide each side by '-3'. r2 = -18 Simplifying r2 = -18 Reorder the terms: 18 + r2 = -18 + 18 Combine like terms: -18 + 18 = 0 18 + r2 = 0 The solution to this equation could not be determined.
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