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Simplifying -7(2f + 8) = -126 Reorder the terms: -7(8 + 2f) = -126 (8 * -7 + 2f * -7) = -126 (-56 + -14f) = -126 Solving -56 + -14f = -126 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '56' to each side of the equation. -56 + 56 + -14f = -126 + 56 Combine like terms: -56 + 56 = 0 0 + -14f = -126 + 56 -14f = -126 + 56 Combine like terms: -126 + 56 = -70 -14f = -70 Divide each side by '-14'. f = 5 Simplifying f = 5
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