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d)8 1/3x-5/9y-3
d) = - 3x - 5y - 3 = - 3 * ( 1 1/3 ) - 5 * 1/9 - 3 = 1 - 2,5/4,5 - 3 = 1 - 5/9 - 3 = 1/1 - 5/9 - 3/1 = - 5/3
3+0,2+7-2-0,5-3= 4,7
d) (2*[-1,1/9])+ (-6*1/9 ) + 8 + (-5*[-1,1/9]) +1/9-11=
-2²/₉ - ²/₃ +8+5⁵/₉ + ¹/₉ - 11=
-2⁸/₉ + 13⁵/₉ + ¹/₉-11=
10²/₃+¹/₉ - 11 =
10⁷/₉ - 11 = - ²/₉