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Simplifying 30 = 2x + (x + -3) * 2 Reorder the terms: 30 = 2x + (-3 + x) * 2 Reorder the terms for easier multiplication: 30 = 2x + 2(-3 + x) 30 = 2x + (-3 * 2 + x * 2) 30 = 2x + (-6 + 2x) Reorder the terms: 30 = -6 + 2x + 2x Combine like terms: 2x + 2x = 4x 30 = -6 + 4x Solving 30 = -6 + 4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4x' to each side of the equation. 30 + -4x = -6 + 4x + -4x Combine like terms: 4x + -4x = 0 30 + -4x = -6 + 0 30 + -4x = -6 Add '-30' to each side of the equation. 30 + -30 + -4x = -6 + -30 Combine like terms: 30 + -30 = 0 0 + -4x = -6 + -30 -4x = -6 + -30 Combine like terms: -6 + -30 = -36 -4x = -36 Divide each side by '-4'. x = 9 Simplifying x = 9
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