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# 0=20-0,05Q

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0=20-0,05Q

Q=?

Guest Jun 11, 2017
#1
+2117
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Our goal is to isolate Q. Let's solve for Q:

 $$0=20-0.05q$$ Subtract 20 on both sides of the equation $$-20=-0.05q$$ Convert 0.05 into a fraction to ease calculation $$-20=-\frac{1}{20}q$$ Multiply by -20 on both sides to get rid of that pesky fraction $$400=q$$ You're done!
TheXSquaredFactor  Jun 11, 2017