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Simplifying -21 = -7v Solving -21 = -7v Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '7v' to each side of the equation. -21 + 7v = -7v + 7v Combine like terms: -7v + 7v = 0 -21 + 7v = 0 Add '21' to each side of the equation. -21 + 21 + 7v = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 7v = 0 + 21 7v = 0 + 21 Combine like terms: 0 + 21 = 21 7v = 21 Divide each side by '7'. v = 3 Simplifying v = 3
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