1) 6,721+х+2,808=(19,46-5,722) - 2,209 2) (7,48+х) -(2,495+1,726)=4,381+3,46-2,582 СРОЧНО
1) х+9.529=13,738-2.209 Х=13.738-2.209-9.529=2 2)7.48+х-4.221=5.259 Х=5.259+4221-7.48=9.48-7.48=2