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Simplifying -1(x + -2) = 4(2x + 20) Reorder the terms: -1(-2 + x) = 4(2x + 20) (-2 * -1 + x * -1) = 4(2x + 20) (2 + -1x) = 4(2x + 20) Reorder the terms: 2 + -1x = 4(20 + 2x) 2 + -1x = (20 * 4 + 2x * 4) 2 + -1x = (80 + 8x) Solving 2 + -1x = 80 + 8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8x' to each side of the equation. 2 + -1x + -8x = 80 + 8x + -8x Combine like terms: -1x + -8x = -9x 2 + -9x = 80 + 8x + -8x Combine like terms: 8x + -8x = 0 2 + -9x = 80 + 0 2 + -9x = 80 Add '-2' to each side of the equation. 2 + -2 + -9x = 80 + -2 Combine like terms: 2 + -2 = 0 0 + -9x = 80 + -2 -9x = 80 + -2 Combine like terms: 80 + -2 = 78 -9x = 78 Divide each side by '-9'. x = -8.666666667 Simplifying x = -8.666666667
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