Solve for a
a = \frac{1928}{3} = 642\frac{2}{3} \approx 642.666666667
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3a-150=1778
Swap sides so that all variable terms are on the left hand side.
3a=1778+150
Add 150 to both sides.
3a=1928
Add 1778 and 150 to get 1928.
a=\frac{1928}{3}
Divide both sides by 3.
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