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x in (-oo:+oo)
7*x+8*((x^1)/4) = 3*(6*x-9)-8 // - 3*(6*x-9)-8
7*x-(3*(6*x-9))+8*((x^1)/4)+8 = 0
7*x-3*(6*x-9)+8*(x/4)+8 = 0
7*x-3*(6*x-9)+2*x+8 = 0
7*x-3*(6*x-9)+2*x+8 = 0
2*x-11*x+8+27 = 0
8-9*x+27 = 0
35-9*x = 0
35-9*x = 0
35-9*x = 0 // - 35
-9*x = -35 // : -9
x = -35/(-9)
x = 35/9
x = 35/9
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