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Simplifying x + 7 + 2x + -1 + x + 3 + 2x + 3 = 39 Reorder the terms: 7 + -1 + 3 + 3 + x + 2x + x + 2x = 39 Combine like terms: 7 + -1 = 6 6 + 3 + 3 + x + 2x + x + 2x = 39 Combine like terms: 6 + 3 = 9 9 + 3 + x + 2x + x + 2x = 39 Combine like terms: 9 + 3 = 12 12 + x + 2x + x + 2x = 39 Combine like terms: x + 2x = 3x 12 + 3x + x + 2x = 39 Combine like terms: 3x + x = 4x 12 + 4x + 2x = 39 Combine like terms: 4x + 2x = 6x 12 + 6x = 39 Solving 12 + 6x = 39 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 + 6x = 39 + -12 Combine like terms: 12 + -12 = 0 0 + 6x = 39 + -12 6x = 39 + -12 Combine like terms: 39 + -12 = 27 6x = 27 Divide each side by '6'. x = 4.5 Simplifying x = 4.5
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