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