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Simplifying 1 + [2 + 7v] = -20 Remove brackets around [2 + 7v] 1 + 2 + 7v = -20 Combine like terms: 1 + 2 = 3 3 + 7v = -20 Solving 3 + 7v = -20 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7v = -20 + -3 Combine like terms: 3 + -3 = 0 0 + 7v = -20 + -3 7v = -20 + -3 Combine like terms: -20 + -3 = -23 7v = -23 Divide each side by '7'. v = -3.285714286 Simplifying v = -3.285714286
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