1)-5(х-4)=5-12 2)(16х-5)-(3-5х)-6 3)26-4х-5х-7(х-3) 4)-2(3-4х)+5(2-1,6)=4. помогите пж

1)-5(х-4)=5-12-5х+20=-7-5х=-27х=5.42)(16х-5)-(3-5х)-6=16х-5-3+5х=21х-83)26-4х-5х-7(х-3)=26-4х-5х-7х+21=-16х+474)-2(3-4х)+5(2-1.6)=4-6+8х+2=48х=8х=1