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Simplifying 7x + 131 = 2x + 66 Reorder the terms: 131 + 7x = 2x + 66 Reorder the terms: 131 + 7x = 66 + 2x Solving 131 + 7x = 66 + 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. 131 + 7x + -2x = 66 + 2x + -2x Combine like terms: 7x + -2x = 5x 131 + 5x = 66 + 2x + -2x Combine like terms: 2x + -2x = 0 131 + 5x = 66 + 0 131 + 5x = 66 Add '-131' to each side of the equation. 131 + -131 + 5x = 66 + -131 Combine like terms: 131 + -131 = 0 0 + 5x = 66 + -131 5x = 66 + -131 Combine like terms: 66 + -131 = -65 5x = -65 Divide each side by '5'. x = -13 Simplifying x = -13
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