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Simplifying -31 + 1r + 2rs + -18s = 0 Solving -31 + 1r + 2rs + -18s = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '31' to each side of the equation. -31 + 1r + 2rs + 31 + -18s = 0 + 31 Reorder the terms: -31 + 31 + 1r + 2rs + -18s = 0 + 31 Combine like terms: -31 + 31 = 0 0 + 1r + 2rs + -18s = 0 + 31 1r + 2rs + -18s = 0 + 31 Combine like terms: 0 + 31 = 31 1r + 2rs + -18s = 31 Add '18s' to each side of the equation. 1r + 2rs + -18s + 18s = 31 + 18s Combine like terms: -18s + 18s = 0 1r + 2rs + 0 = 31 + 18s 1r + 2rs = 31 + 18s Reorder the terms: -31 + 1r + 2rs + -18s = 31 + 18s + -31 + -18s Reorder the terms: -31 + 1r + 2rs + -18s = 31 + -31 + 18s + -18s Combine like terms: 31 + -31 = 0 -31 + 1r + 2rs + -18s = 0 + 18s + -18s -31 + 1r + 2rs + -18s = 18s + -18s Combine like terms: 18s + -18s = 0 -31 + 1r + 2rs + -18s = 0 The solution to this equation could not be determined.
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