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Simplifying 21f + 2 = 19f + 22 Reorder the terms: 2 + 21f = 19f + 22 Reorder the terms: 2 + 21f = 22 + 19f Solving 2 + 21f = 22 + 19f Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-19f' to each side of the equation. 2 + 21f + -19f = 22 + 19f + -19f Combine like terms: 21f + -19f = 2f 2 + 2f = 22 + 19f + -19f Combine like terms: 19f + -19f = 0 2 + 2f = 22 + 0 2 + 2f = 22 Add '-2' to each side of the equation. 2 + -2 + 2f = 22 + -2 Combine like terms: 2 + -2 = 0 0 + 2f = 22 + -2 2f = 22 + -2 Combine like terms: 22 + -2 = 20 2f = 20 Divide each side by '2'. f = 10 Simplifying f = 10
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