(3целых1/7х+5целых1/2)*1целых7/11=21(22/7х+11/2)*18/11=2122*18 11*18 х + =217*11 2*11
36/7х+9=21
36/7х=21-9
36/7х=12
х=12:36/7
х=7/3=2целых1/3
(3целых1/7х+5целых1/2)*1целых7/11=21
(22/7х+11/2)*18/11=21
22*18 11*18
х + =21
7*11 2*11
36/7х+9=21
36/7х=21-9
36/7х=12
х=12:36/7
х=7/3=2целых1/3