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Simplifying 2x(2) + -1 = 31 Reorder the terms for easier multiplication: 2 * 2x + -1 = 31 Multiply 2 * 2 4x + -1 = 31 Reorder the terms: -1 + 4x = 31 Solving -1 + 4x = 31 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 4x = 31 + 1 Combine like terms: -1 + 1 = 0 0 + 4x = 31 + 1 4x = 31 + 1 Combine like terms: 31 + 1 = 32 4x = 32 Divide each side by '4'. x = 8 Simplifying x = 8
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