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5f-7=f+28
We simplify the equation to the form, which is simple to understand
5f-7=f+28
We move all terms containing f to the left and all other terms to the right.
+5f-1f=+28+7
We simplify left and right side of the equation.
+4f=+35
We divide both sides of the equation by 4 to get f.
f=8.75
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