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Simplifying -1 = -4t + 2r Reorder the terms: -1 = 2r + -4t Solving -1 = 2r + -4t Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. -1 + -2r = 2r + -2r + -4t Combine like terms: 2r + -2r = 0 -1 + -2r = 0 + -4t -1 + -2r = -4t Add '1' to each side of the equation. -1 + 1 + -2r = 1 + -4t Combine like terms: -1 + 1 = 0 0 + -2r = 1 + -4t -2r = 1 + -4t Divide each side by '-2'. r = -0.5 + 2t Simplifying r = -0.5 + 2t
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