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Simplifying -2r + -3 = 7 Reorder the terms: -3 + -2r = 7 Solving -3 + -2r = 7 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2r = 7 + 3 Combine like terms: -3 + 3 = 0 0 + -2r = 7 + 3 -2r = 7 + 3 Combine like terms: 7 + 3 = 10 -2r = 10 Divide each side by '-2'. r = -5 Simplifying r = -5
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