Solve for a
a=-\frac{3}{50}=-0.06
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0=a\times 10^{2}+6
Subtract 10 from 20 to get 10.
0=a\times 100+6
Calculate 10 to the power of 2 and get 100.
a\times 100+6=0
Swap sides so that all variable terms are on the left hand side.
a\times 100=-6
Subtract 6 from both sides. Anything subtracted from zero gives its negation.
a=\frac{-6}{100}
Divide both sides by 100.
a=-\frac{3}{50}
Reduce the fraction \frac{-6}{100} to lowest terms by extracting and canceling out 2.
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