Ответ:
1/3(2а-9)-1/2(5b+4)=2/3а-3-5/2b-2=2/3а-5/2b-5
2/3×4
1/2-5/2×4/15-5=2/3×9/2-5/2×4/15-5=3-2/3-5=22/3
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Ответ:
1/3(2а-9)-1/2(5b+4)=2/3а-3-5/2b-2=2/3а-5/2b-5
2/3×4
1/2-5/2×4/15-5=2/3×9/2-5/2×4/15-5=3-2/3-5=22/3