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x in (-oo:+oo)
3*x-7 = x-65/9 // - x-65/9
3*x-x-(-65/9)-7 = 0
3*x-x+65/9-7 = 0
2*x+2/9 = 0 // - 2/9
2*x = -2/9 // : 2
x = -2/9/2
x = -1/9
x = -1/9
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