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Simplifying 20x + 30 = 9x + 7 Reorder the terms: 30 + 20x = 9x + 7 Reorder the terms: 30 + 20x = 7 + 9x Solving 30 + 20x = 7 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. 30 + 20x + -9x = 7 + 9x + -9x Combine like terms: 20x + -9x = 11x 30 + 11x = 7 + 9x + -9x Combine like terms: 9x + -9x = 0 30 + 11x = 7 + 0 30 + 11x = 7 Add '-30' to each side of the equation. 30 + -30 + 11x = 7 + -30 Combine like terms: 30 + -30 = 0 0 + 11x = 7 + -30 11x = 7 + -30 Combine like terms: 7 + -30 = -23 11x = -23 Divide each side by '11'. x = -2.090909091 Simplifying x = -2.090909091
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