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Simplifying -9 = v + -1(-4) Multiply -1 * -4 -9 = v + 4 Reorder the terms: -9 = 4 + v Solving -9 = 4 + v Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-1v' to each side of the equation. -9 + -1v = 4 + v + -1v Combine like terms: v + -1v = 0 -9 + -1v = 4 + 0 -9 + -1v = 4 Add '9' to each side of the equation. -9 + 9 + -1v = 4 + 9 Combine like terms: -9 + 9 = 0 0 + -1v = 4 + 9 -1v = 4 + 9 Combine like terms: 4 + 9 = 13 -1v = 13 Divide each side by '-1'. v = -13 Simplifying v = -13
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