(4.7+x):3.8=10.5
4.7+x=10.5*3.8
4.7+x=39.9
x=39.9-4.7
x=35.2
4,7+х=39,9;
х=39,9-4,7;
х=35,2.
ответ: 35,2.
(4.7+x):3.8=10.5
4.7+x=10.5*3.8
4.7+x=39.9
x=39.9-4.7
x=35.2
4,7+х=39,9;
х=39,9-4,7;
х=35,2.
ответ: 35,2.