17+1.4х+х=65
17+2.4х=65
2.4х=65-17=48
х=48:2.4=20
1000011 - миллион одиннадцать, 1000001 - миллион один.
<span>) 1 ц 5/28* (х: 3,6-1/7)=2 ц 5/14
33/28 *(х:36/10-1/7)=33/14
</span>х:36/10-1/7=33/14 :33/28
х:36/10-1/7=2
х:36/10=2+1/7
х:36/10=15/7
х=15/7*36/10
х=108/14=54/7
пРОВЕРИМ
33/28*(54/7:36/10-1/7)=33/14
33/28*(60/28-4/28)=33/28*56/28=66/28=33/14