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5*x-(19/(-3)) = -7 // + 7
5*x-(19/(-3))+7 = 0
5*x+19/3+7 = 0
5*x+40/3 = 0 // - 40/3
5*x = -40/3 // : 5
x = -40/3/5
x = -8/3
x = -8/3
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