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x in (-oo:+oo)
0.5*x-4 = -((1/3)*x)-3 // + -((1/3)*x)-3
0.5*x+(1/3)*x-4+3 = 0
0.83333333*x-1 = 0 // + 1
0.83333333*x = 1 // : 0.83333333
x = 1/0.83333333
x = 1.2
x = 1.2
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