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Simplifying 2x + -7 = 31 + -2x Reorder the terms: -7 + 2x = 31 + -2x Solving -7 + 2x = 31 + -2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2x' to each side of the equation. -7 + 2x + 2x = 31 + -2x + 2x Combine like terms: 2x + 2x = 4x -7 + 4x = 31 + -2x + 2x Combine like terms: -2x + 2x = 0 -7 + 4x = 31 + 0 -7 + 4x = 31 Add '7' to each side of the equation. -7 + 7 + 4x = 31 + 7 Combine like terms: -7 + 7 = 0 0 + 4x = 31 + 7 4x = 31 + 7 Combine like terms: 31 + 7 = 38 4x = 38 Divide each side by '4'. x = 9.5 Simplifying x = 9.5
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