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f-2/5+3f/10=1/5-2f
We simplify the equation to the form, which is simple to understand
f-2/5+3f/10=1/5-2f
Simplifying:
f-0.4+3f/10=1/5-2f
Simplifying:
f-0.4 + 0.3f=1/5-2f
Simplifying:
f-0.4 + 0.3f=0.2-2f
We move all terms containing f to the left and all other terms to the right.
+1f + 0.3f+2f=0.2 + 0.4
We simplify left and right side of the equation.
+3.3f=0.6
We divide both sides of the equation by 3.3 to get f.
f=0.181818181818
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