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Simplifying 13 = -7w + (w + 4) Reorder the terms: 13 = -7w + (4 + w) Remove parenthesis around (4 + w) 13 = -7w + 4 + w Reorder the terms: 13 = 4 + -7w + w Combine like terms: -7w + w = -6w 13 = 4 + -6w Solving 13 = 4 + -6w Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '6w' to each side of the equation. 13 + 6w = 4 + -6w + 6w Combine like terms: -6w + 6w = 0 13 + 6w = 4 + 0 13 + 6w = 4 Add '-13' to each side of the equation. 13 + -13 + 6w = 4 + -13 Combine like terms: 13 + -13 = 0 0 + 6w = 4 + -13 6w = 4 + -13 Combine like terms: 4 + -13 = -9 6w = -9 Divide each side by '6'. w = -1.5 Simplifying w = -1.5
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