Solve for a
a = \frac{10}{3} = 3\frac{1}{3} \approx 3.333333333
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3a-1=9
Multiply both sides of the equation by 9, the least common multiple of 3,9.
3a=9+1
Add 1 to both sides.
3a=10
Add 9 and 1 to get 10.
a=\frac{10}{3}
Divide both sides by 3.
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