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Simplifying 13 + -2(2x + 1) = 0 Reorder the terms: 13 + -2(1 + 2x) = 0 13 + (1 * -2 + 2x * -2) = 0 13 + (-2 + -4x) = 0 Combine like terms: 13 + -2 = 11 11 + -4x = 0 Solving 11 + -4x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -4x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -4x = 0 + -11 -4x = 0 + -11 Combine like terms: 0 + -11 = -11 -4x = -11 Divide each side by '-4'. x = 2.75 Simplifying x = 2.75
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