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Simplifying 9x + -1 = 7x Reorder the terms: -1 + 9x = 7x Solving -1 + 9x = 7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7x' to each side of the equation. -1 + 9x + -7x = 7x + -7x Combine like terms: 9x + -7x = 2x -1 + 2x = 7x + -7x Combine like terms: 7x + -7x = 0 -1 + 2x = 0 Add '1' to each side of the equation. -1 + 1 + 2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 2x = 0 + 1 2x = 0 + 1 Combine like terms: 0 + 1 = 1 2x = 1 Divide each side by '2'. x = 0.5 Simplifying x = 0.5
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