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Simplifying S * 7 + 31 = 178 Reorder the terms for easier multiplication: 7S + 31 = 178 Reorder the terms: 31 + 7S = 178 Solving 31 + 7S = 178 Solving for variable 'S'. Move all terms containing S to the left, all other terms to the right. Add '-31' to each side of the equation. 31 + -31 + 7S = 178 + -31 Combine like terms: 31 + -31 = 0 0 + 7S = 178 + -31 7S = 178 + -31 Combine like terms: 178 + -31 = 147 7S = 147 Divide each side by '7'. S = 21 Simplifying S = 21
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