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7-(11*x) = 4-(4*x)-(7*x)-((6/3)*(2^2+4)) // - 4-(4*x)-(7*x)-((6/3)*(2^2+4))
4*x-(11*x)+7*x+(6/3)*(2^2+4)-4+7 = 0
4*x-11*x+7*x+(6/3)*(2^2+4)-4+7 = 0
19 = 0
x belongs to the empty set
x belongs to the empty set
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