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Simplifying -1 + 7x = 5x + 9 Reorder the terms: -1 + 7x = 9 + 5x Solving -1 + 7x = 9 + 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. -1 + 7x + -5x = 9 + 5x + -5x Combine like terms: 7x + -5x = 2x -1 + 2x = 9 + 5x + -5x Combine like terms: 5x + -5x = 0 -1 + 2x = 9 + 0 -1 + 2x = 9 Add '1' to each side of the equation. -1 + 1 + 2x = 9 + 1 Combine like terms: -1 + 1 = 0 0 + 2x = 9 + 1 2x = 9 + 1 Combine like terms: 9 + 1 = 10 2x = 10 Divide each side by '2'. x = 5 Simplifying x = 5
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