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Simplifying 2(f + -7) = 7 Reorder the terms: 2(-7 + f) = 7 (-7 * 2 + f * 2) = 7 (-14 + 2f) = 7 Solving -14 + 2f = 7 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + 2f = 7 + 14 Combine like terms: -14 + 14 = 0 0 + 2f = 7 + 14 2f = 7 + 14 Combine like terms: 7 + 14 = 21 2f = 21 Divide each side by '2'. f = 10.5 Simplifying f = 10.5
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