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Simplifying 12 + 5x = r Solving 12 + 5x = r Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + 5x = -12 + r Combine like terms: 12 + -12 = 0 0 + 5x = -12 + r 5x = -12 + r Divide each side by '5'. x = -2.4 + 0.2r Simplifying x = -2.4 + 0.2r
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