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2*x+4 = 7*x-(8/3) // - 7*x-(8/3)
2*x-(7*x)+8/3+4 = 0
2*x-7*x+8/3+4 = 0
20/3-5*x = 0 // - 20/3
-5*x = -20/3 // : -5
x = -20/3/(-5)
x = 4/3
x = 4/3
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