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Simplifying 7f + 19 + 3f = -81 Reorder the terms: 19 + 7f + 3f = -81 Combine like terms: 7f + 3f = 10f 19 + 10f = -81 Solving 19 + 10f = -81 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + 10f = -81 + -19 Combine like terms: 19 + -19 = 0 0 + 10f = -81 + -19 10f = -81 + -19 Combine like terms: -81 + -19 = -100 10f = -100 Divide each side by '10'. f = -10 Simplifying f = -10
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