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Simplifying 20 + -4x = -2(x + -2) Reorder the terms: 20 + -4x = -2(-2 + x) 20 + -4x = (-2 * -2 + x * -2) 20 + -4x = (4 + -2x) Solving 20 + -4x = 4 + -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. 20 + -4x + 2x = 4 + -2x + 2x Combine like terms: -4x + 2x = -2x 20 + -2x = 4 + -2x + 2x Combine like terms: -2x + 2x = 0 20 + -2x = 4 + 0 20 + -2x = 4 Add '-20' to each side of the equation. 20 + -20 + -2x = 4 + -20 Combine like terms: 20 + -20 = 0 0 + -2x = 4 + -20 -2x = 4 + -20 Combine like terms: 4 + -20 = -16 -2x = -16 Divide each side by '-2'. x = 8 Simplifying x = 8
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