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Simplifying 7x + 7 = (-5x + -5) Reorder the terms: 7 + 7x = (-5x + -5) Reorder the terms: 7 + 7x = (-5 + -5x) Remove parenthesis around (-5 + -5x) 7 + 7x = -5 + -5x Solving 7 + 7x = -5 + -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. 7 + 7x + 5x = -5 + -5x + 5x Combine like terms: 7x + 5x = 12x 7 + 12x = -5 + -5x + 5x Combine like terms: -5x + 5x = 0 7 + 12x = -5 + 0 7 + 12x = -5 Add '-7' to each side of the equation. 7 + -7 + 12x = -5 + -7 Combine like terms: 7 + -7 = 0 0 + 12x = -5 + -7 12x = -5 + -7 Combine like terms: -5 + -7 = -12 12x = -12 Divide each side by '12'. x = -1 Simplifying x = -1
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