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Simplifying f(0) = 7 + -4x Reorder the terms for easier multiplication: 0f = 7 + -4x Anything times zero is zero. 0f = 7 + -4x Solving 0 = 7 + -4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4x' to each side of the equation. 0 + 4x = 7 + -4x + 4x Remove the zero: 4x = 7 + -4x + 4x Combine like terms: -4x + 4x = 0 4x = 7 + 0 4x = 7 Divide each side by '4'. x = 1.75 Simplifying x = 1.75
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