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Simplifying x + -7 + x + 2x = 30.5 + -1x Reorder the terms: -7 + x + x + 2x = 30.5 + -1x Combine like terms: x + x = 2x -7 + 2x + 2x = 30.5 + -1x Combine like terms: 2x + 2x = 4x -7 + 4x = 30.5 + -1x Solving -7 + 4x = 30.5 + -1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'x' to each side of the equation. -7 + 4x + x = 30.5 + -1x + x Combine like terms: 4x + x = 5x -7 + 5x = 30.5 + -1x + x Combine like terms: -1x + x = 0 -7 + 5x = 30.5 + 0 -7 + 5x = 30.5 Add '7' to each side of the equation. -7 + 7 + 5x = 30.5 + 7 Combine like terms: -7 + 7 = 0 0 + 5x = 30.5 + 7 5x = 30.5 + 7 Combine like terms: 30.5 + 7 = 37.5 5x = 37.5 Divide each side by '5'. x = 7.5 Simplifying x = 7.5
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