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Simplifying 3f + -42 = 5f + -68 Reorder the terms: -42 + 3f = 5f + -68 Reorder the terms: -42 + 3f = -68 + 5f Solving -42 + 3f = -68 + 5f Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-5f' to each side of the equation. -42 + 3f + -5f = -68 + 5f + -5f Combine like terms: 3f + -5f = -2f -42 + -2f = -68 + 5f + -5f Combine like terms: 5f + -5f = 0 -42 + -2f = -68 + 0 -42 + -2f = -68 Add '42' to each side of the equation. -42 + 42 + -2f = -68 + 42 Combine like terms: -42 + 42 = 0 0 + -2f = -68 + 42 -2f = -68 + 42 Combine like terms: -68 + 42 = -26 -2f = -26 Divide each side by '-2'. f = 13 Simplifying f = 13
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