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x in (-oo:+oo)
(1/3)*x-2.99 = 1.02 // - 1.02
(1/3)*x-2.99-1.02 = 0
1/3*x-4.01 = 0 // + 4.01
1/3*x = 4.01 // : 1/3
x = 4.01/1/3
x = 12.03000012
x = 12.03000012
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