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Simplifying 156 = 3(-7n + -4) Reorder the terms: 156 = 3(-4 + -7n) 156 = (-4 * 3 + -7n * 3) 156 = (-12 + -21n) Solving 156 = -12 + -21n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21n' to each side of the equation. 156 + 21n = -12 + -21n + 21n Combine like terms: -21n + 21n = 0 156 + 21n = -12 + 0 156 + 21n = -12 Add '-156' to each side of the equation. 156 + -156 + 21n = -12 + -156 Combine like terms: 156 + -156 = 0 0 + 21n = -12 + -156 21n = -12 + -156 Combine like terms: -12 + -156 = -168 21n = -168 Divide each side by '21'. n = -8 Simplifying n = -8
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