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Simplifying 87x + 7 = 6x + -81 Reorder the terms: 7 + 87x = 6x + -81 Reorder the terms: 7 + 87x = -81 + 6x Solving 7 + 87x = -81 + 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 7 + 87x + -6x = -81 + 6x + -6x Combine like terms: 87x + -6x = 81x 7 + 81x = -81 + 6x + -6x Combine like terms: 6x + -6x = 0 7 + 81x = -81 + 0 7 + 81x = -81 Add '-7' to each side of the equation. 7 + -7 + 81x = -81 + -7 Combine like terms: 7 + -7 = 0 0 + 81x = -81 + -7 81x = -81 + -7 Combine like terms: -81 + -7 = -88 81x = -88 Divide each side by '81'. x = -1.086419753 Simplifying x = -1.086419753
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