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Simplifying [2(6x + -3) + 2] + (6x + -3) + x = 123 Reorder the terms: [2(-3 + 6x) + 2] + (6x + -3) + x = 123 [(-3 * 2 + 6x * 2) + 2] + (6x + -3) + x = 123 [(-6 + 12x) + 2] + (6x + -3) + x = 123 Reorder the terms: [-6 + 2 + 12x] + (6x + -3) + x = 123 Combine like terms: -6 + 2 = -4 [-4 + 12x] + (6x + -3) + x = 123 Remove brackets around [-4 + 12x] -4 + 12x + (6x + -3) + x = 123 Reorder the terms: -4 + 12x + (-3 + 6x) + x = 123 Remove parenthesis around (-3 + 6x) -4 + 12x + -3 + 6x + x = 123 Reorder the terms: -4 + -3 + 12x + 6x + x = 123 Combine like terms: -4 + -3 = -7 -7 + 12x + 6x + x = 123 Combine like terms: 12x + 6x = 18x -7 + 18x + x = 123 Combine like terms: 18x + x = 19x -7 + 19x = 123 Solving -7 + 19x = 123 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 19x = 123 + 7 Combine like terms: -7 + 7 = 0 0 + 19x = 123 + 7 19x = 123 + 7 Combine like terms: 123 + 7 = 130 19x = 130 Divide each side by '19'. x = 6.842105263 Simplifying x = 6.842105263
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