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3*x+8/2 = 7*x-(3/4) // - 7*x-(3/4)
3*x-(7*x)+8/2+3/4 = 0
3*x-7*x+8/2+3/4 = 0
19/4-4*x = 0 // - 19/4
-4*x = -19/4 // : -4
x = -19/4/(-4)
x = 19/16
x = 19/16
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