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(2/3)*x-x+10 = 28/3 // - 28/3
(2/3)*x-x-(28/3)+10 = 0
(2/3)*x-x-28/3+10 = 0
2/3-1/3*x = 0 // - 2/3
-1/3*x = -2/3 // : -1/3
x = -2/3/(-1/3)
x = 2
x = 2
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