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Simplifying f(x) = 0.7(6) * x Multiply f * x fx = 0.7(6) * x Multiply 0.7 * 6 fx = 4.2x Solving fx = 4.2x Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = 4.2 Simplifying f = 4.2
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