Solve for a
a = \frac{25}{8} = 3\frac{1}{8} = 3.125
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8a=25
Square both sides of the equation.
\frac{8a}{8}=\frac{25}{8}
Divide both sides by 8.
a=\frac{25}{8}
Dividing by 8 undoes the multiplication by 8.
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