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Simplifying -2r + -5 = -7 Reorder the terms: -5 + -2r = -7 Solving -5 + -2r = -7 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2r = -7 + 5 Combine like terms: -5 + 5 = 0 0 + -2r = -7 + 5 -2r = -7 + 5 Combine like terms: -7 + 5 = -2 -2r = -2 Divide each side by '-2'. r = 1 Simplifying r = 1
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