СРОЧНО!!
(х - 1 3/4)*2/3=0 х - 1 3/4=0:2/3 х - 1 3/4=0 х=1 3/4 12*(х - 1 3/10 * 5/6)=0 х - 1 3/10 * 5/6=0:12 х - 13/10 * 5/6=0 х - 13/12=0 х=13/12=1 1/12