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x in (-oo:+oo)
(1/2)*(11*x-7) = 3*(2*x-1) // - 3*(2*x-1)
(1/2)*(11*x-7)-(3*(2*x-1)) = 0
(1/2)*(11*x-7)-3*(2*x-1) = 0
1/2*(11*x-7)-3*(2*x-1) = 0
1/2*(11*x-7)-3*(2*x-1) = 0
-1/2*x-1/2 = 0
-1/2*x-1/2 = 0
-1/2*x-1/2 = 0 // + 1/2
-1/2*x = 1/2 // : -1/2
x = 1/2/(-1/2)
x = -1
x = -1
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