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Simplifying 81 + -2x = 8 + -9x Solving 81 + -2x = 8 + -9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9x' to each side of the equation. 81 + -2x + 9x = 8 + -9x + 9x Combine like terms: -2x + 9x = 7x 81 + 7x = 8 + -9x + 9x Combine like terms: -9x + 9x = 0 81 + 7x = 8 + 0 81 + 7x = 8 Add '-81' to each side of the equation. 81 + -81 + 7x = 8 + -81 Combine like terms: 81 + -81 = 0 0 + 7x = 8 + -81 7x = 8 + -81 Combine like terms: 8 + -81 = -73 7x = -73 Divide each side by '7'. x = -10.42857143 Simplifying x = -10.42857143
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