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Simplifying 5x + 13 = r Reorder the terms: 13 + 5x = r Solving 13 + 5x = r Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + 5x = -13 + r Combine like terms: 13 + -13 = 0 0 + 5x = -13 + r 5x = -13 + r Divide each side by '5'. x = -2.6 + 0.2r Simplifying x = -2.6 + 0.2r
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