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Simplifying 5(15.56) + 7c = 140 Multiply 5 * 15.56 77.8 + 7c = 140 Solving 77.8 + 7c = 140 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-77.8' to each side of the equation. 77.8 + -77.8 + 7c = 140 + -77.8 Combine like terms: 77.8 + -77.8 = 0.0 0.0 + 7c = 140 + -77.8 7c = 140 + -77.8 Combine like terms: 140 + -77.8 = 62.2 7c = 62.2 Divide each side by '7'. c = 8.885714286 Simplifying c = 8.885714286
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