1) 8(1-х)+4(х-2)=24;
2)14(х-5)-7(х+2)=-14;
3)1/2х=1/4(х-7)=х;
4)1/7-х+2/4=3-6х/28.
прошу помогите голова вобще не варит уже. пошагово пожалуйсто
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