Solve for A
A=20500
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0.04A=820
Combine 1.04A and -A to get 0.04A.
A=\frac{820}{0.04}
Divide both sides by 0.04.
A=\frac{82000}{4}
Expand \frac{820}{0.04} by multiplying both numerator and the denominator by 100.
A=20500
Divide 82000 by 4 to get 20500.
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