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Simplifying -21 = -8v + 5(v + -6) Reorder the terms: -21 = -8v + 5(-6 + v) -21 = -8v + (-6 * 5 + v * 5) -21 = -8v + (-30 + 5v) Reorder the terms: -21 = -30 + -8v + 5v Combine like terms: -8v + 5v = -3v -21 = -30 + -3v Solving -21 = -30 + -3v Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3v' to each side of the equation. -21 + 3v = -30 + -3v + 3v Combine like terms: -3v + 3v = 0 -21 + 3v = -30 + 0 -21 + 3v = -30 Add '21' to each side of the equation. -21 + 21 + 3v = -30 + 21 Combine like terms: -21 + 21 = 0 0 + 3v = -30 + 21 3v = -30 + 21 Combine like terms: -30 + 21 = -9 3v = -9 Divide each side by '3'. v = -3 Simplifying v = -3
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