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Simplifying 8x + 20 = x + 15 Reorder the terms: 20 + 8x = x + 15 Reorder the terms: 20 + 8x = 15 + x Solving 20 + 8x = 15 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 20 + 8x + -1x = 15 + x + -1x Combine like terms: 8x + -1x = 7x 20 + 7x = 15 + x + -1x Combine like terms: x + -1x = 0 20 + 7x = 15 + 0 20 + 7x = 15 Add '-20' to each side of the equation. 20 + -20 + 7x = 15 + -20 Combine like terms: 20 + -20 = 0 0 + 7x = 15 + -20 7x = 15 + -20 Combine like terms: 15 + -20 = -5 7x = -5 Divide each side by '7'. x = -0.7142857143 Simplifying x = -0.7142857143
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