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Simplifying 7 + 4n = -10 + 8n + -3 + -8 Reorder the terms: 7 + 4n = -10 + -3 + -8 + 8n Combine like terms: -10 + -3 = -13 7 + 4n = -13 + -8 + 8n Combine like terms: -13 + -8 = -21 7 + 4n = -21 + 8n Solving 7 + 4n = -21 + 8n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-8n' to each side of the equation. 7 + 4n + -8n = -21 + 8n + -8n Combine like terms: 4n + -8n = -4n 7 + -4n = -21 + 8n + -8n Combine like terms: 8n + -8n = 0 7 + -4n = -21 + 0 7 + -4n = -21 Add '-7' to each side of the equation. 7 + -7 + -4n = -21 + -7 Combine like terms: 7 + -7 = 0 0 + -4n = -21 + -7 -4n = -21 + -7 Combine like terms: -21 + -7 = -28 -4n = -28 Divide each side by '-4'. n = 7 Simplifying n = 7
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