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a in (-oo:+oo)
6*a+4/5 = 334/5 // - 334/5
6*a+4/5-(334/5) = 0
6*a+4/5-334/5 = 0
6*a-66 = 0 // + 66
6*a = 66 // : 6
a = 66/6
a = 11
a = 11
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