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Simplifying 2x + -7 + 6x = 81 Reorder the terms: -7 + 2x + 6x = 81 Combine like terms: 2x + 6x = 8x -7 + 8x = 81 Solving -7 + 8x = 81 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 8x = 81 + 7 Combine like terms: -7 + 7 = 0 0 + 8x = 81 + 7 8x = 81 + 7 Combine like terms: 81 + 7 = 88 8x = 88 Divide each side by '8'. x = 11 Simplifying x = 11
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