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Simplifying 21 = 2v + -19 Reorder the terms: 21 = -19 + 2v Solving 21 = -19 + 2v Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-2v' to each side of the equation. 21 + -2v = -19 + 2v + -2v Combine like terms: 2v + -2v = 0 21 + -2v = -19 + 0 21 + -2v = -19 Add '-21' to each side of the equation. 21 + -21 + -2v = -19 + -21 Combine like terms: 21 + -21 = 0 0 + -2v = -19 + -21 -2v = -19 + -21 Combine like terms: -19 + -21 = -40 -2v = -40 Divide each side by '-2'. v = 20 Simplifying v = 20
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