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Simplifying -2[s + -1(5 + -4s)] + 4 = 3s -2[s + (5 * -1 + -4s * -1)] + 4 = 3s -2[s + (-5 + 4s)] + 4 = 3s Reorder the terms: -2[-5 + s + 4s] + 4 = 3s Combine like terms: s + 4s = 5s -2[-5 + 5s] + 4 = 3s [-5 * -2 + 5s * -2] + 4 = 3s [10 + -10s] + 4 = 3s Reorder the terms: 10 + 4 + -10s = 3s Combine like terms: 10 + 4 = 14 14 + -10s = 3s Solving 14 + -10s = 3s Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-3s' to each side of the equation. 14 + -10s + -3s = 3s + -3s Combine like terms: -10s + -3s = -13s 14 + -13s = 3s + -3s Combine like terms: 3s + -3s = 0 14 + -13s = 0 Add '-14' to each side of the equation. 14 + -14 + -13s = 0 + -14 Combine like terms: 14 + -14 = 0 0 + -13s = 0 + -14 -13s = 0 + -14 Combine like terms: 0 + -14 = -14 -13s = -14 Divide each side by '-13'. s = 1.076923077 Simplifying s = 1.076923077
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