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Simplifying -84 = -7(-8 + -4v) -84 = (-8 * -7 + -4v * -7) -84 = (56 + 28v) Solving -84 = 56 + 28v Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-28v' to each side of the equation. -84 + -28v = 56 + 28v + -28v Combine like terms: 28v + -28v = 0 -84 + -28v = 56 + 0 -84 + -28v = 56 Add '84' to each side of the equation. -84 + 84 + -28v = 56 + 84 Combine like terms: -84 + 84 = 0 0 + -28v = 56 + 84 -28v = 56 + 84 Combine like terms: 56 + 84 = 140 -28v = 140 Divide each side by '-28'. v = -5 Simplifying v = -5
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