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Simplifying 3 + 5(x + 2) = 8x + 20 Reorder the terms: 3 + 5(2 + x) = 8x + 20 3 + (2 * 5 + x * 5) = 8x + 20 3 + (10 + 5x) = 8x + 20 Combine like terms: 3 + 10 = 13 13 + 5x = 8x + 20 Reorder the terms: 13 + 5x = 20 + 8x Solving 13 + 5x = 20 + 8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8x' to each side of the equation. 13 + 5x + -8x = 20 + 8x + -8x Combine like terms: 5x + -8x = -3x 13 + -3x = 20 + 8x + -8x Combine like terms: 8x + -8x = 0 13 + -3x = 20 + 0 13 + -3x = 20 Add '-13' to each side of the equation. 13 + -13 + -3x = 20 + -13 Combine like terms: 13 + -13 = 0 0 + -3x = 20 + -13 -3x = 20 + -13 Combine like terms: 20 + -13 = 7 -3x = 7 Divide each side by '-3'. x = -2.333333333 Simplifying x = -2.333333333
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