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8f+2-f=-3
We simplify the equation to the form, which is simple to understand
8f+2-f=-3
We move all terms containing f to the left and all other terms to the right.
+8f-1f=-3-2
We simplify left and right side of the equation.
+7f=-5
We divide both sides of the equation by 7 to get f.
f=-0.714285714286
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