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f(7)+5*3=0
We simplify the equation to the form, which is simple to understand
f(7)+5*3=0
Simplifying:
f*(7)+15=0
Reorder the terms in parentheses
+(+7f)+15=0
Remove unnecessary parentheses
+7f+15=0
We move all terms containing f to the left and all other terms to the right.
+7f=0-15
We simplify left and right side of the equation.
+7f=-15
We divide both sides of the equation by 7 to get f.
f=-2.14285714286
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