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Simplifying 7x + -2(-6x + -7) = -81 Reorder the terms: 7x + -2(-7 + -6x) = -81 7x + (-7 * -2 + -6x * -2) = -81 7x + (14 + 12x) = -81 Reorder the terms: 14 + 7x + 12x = -81 Combine like terms: 7x + 12x = 19x 14 + 19x = -81 Solving 14 + 19x = -81 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + 19x = -81 + -14 Combine like terms: 14 + -14 = 0 0 + 19x = -81 + -14 19x = -81 + -14 Combine like terms: -81 + -14 = -95 19x = -95 Divide each side by '19'. x = -5 Simplifying x = -5
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