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Simplifying 2r + 3r + -5 = -7 Reorder the terms: -5 + 2r + 3r = -7 Combine like terms: 2r + 3r = 5r -5 + 5r = -7 Solving -5 + 5r = -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 + 5r = -7 + 5 Combine like terms: -5 + 5 = 0 0 + 5r = -7 + 5 5r = -7 + 5 Combine like terms: -7 + 5 = -2 5r = -2 Divide each side by '5'. r = -0.4 Simplifying r = -0.4
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