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Simplifying 7 + -3x + 8r = 2 Reorder the terms: 7 + 8r + -3x = 2 Solving 7 + 8r + -3x = 2 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + 8r + -7 + -3x = 2 + -7 Reorder the terms: 7 + -7 + 8r + -3x = 2 + -7 Combine like terms: 7 + -7 = 0 0 + 8r + -3x = 2 + -7 8r + -3x = 2 + -7 Combine like terms: 2 + -7 = -5 8r + -3x = -5 Add '3x' to each side of the equation. 8r + -3x + 3x = -5 + 3x Combine like terms: -3x + 3x = 0 8r + 0 = -5 + 3x 8r = -5 + 3x Divide each side by '8'. r = -0.625 + 0.375x Simplifying r = -0.625 + 0.375x
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