Solve for a
a=12
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4a+8a+12a=288
Multiply 4 and 2 to get 8. Multiply 4 and 3 to get 12.
12a+12a=288
Combine 4a and 8a to get 12a.
24a=288
Combine 12a and 12a to get 24a.
a=\frac{288}{24}
Divide both sides by 24.
a=12
Divide 288 by 24 to get 12.
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