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Simplifying -3 = n + -1(-15) Multiply -1 * -15 -3 = n + 15 Reorder the terms: -3 = 15 + n Solving -3 = 15 + n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1n' to each side of the equation. -3 + -1n = 15 + n + -1n Combine like terms: n + -1n = 0 -3 + -1n = 15 + 0 -3 + -1n = 15 Add '3' to each side of the equation. -3 + 3 + -1n = 15 + 3 Combine like terms: -3 + 3 = 0 0 + -1n = 15 + 3 -1n = 15 + 3 Combine like terms: 15 + 3 = 18 -1n = 18 Divide each side by '-1'. n = -18 Simplifying n = -18
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