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(2/3)*(4*a-15)-((1/9)*(6*a-2)) = 0
(2/3)*(4*a-15)+(-1/9)*(6*a-2) = 0
2/3*(4*a-15)-1/9*(6*a-2) = 0
2/3*(4*a-15)-1/9*(6*a-2) = 0
2*a-88/9 = 0
2*a-88/9 = 0
2*a-88/9 = 0 // + 88/9
2*a = 88/9 // : 2
a = 88/9/2
a = 44/9
a = 44/9
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