Solve for A
A=48
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124800-2600A=0
Swap sides so that all variable terms are on the left hand side.
-2600A=-124800
Subtract 124800 from both sides. Anything subtracted from zero gives its negation.
A=\frac{-124800}{-2600}
Divide both sides by -2600.
A=48
Divide -124800 by -2600 to get 48.
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