@fuad028

fuad028

новичок

помогите 7х=-30+2х 16-18х=-25х-12 -17х+20=7х-28 дам 38 баллов...
Answer
3х=28-х 5х+12=8х+30 33+8х=-5х+72...
Answer
дам сорок баллов 12а-6b+18c...
Answer

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