8(х+14)=378
х+14=378:8
х+14=47,25
х=47,25-14
х=33,25
9(152-7х)=927
152-7х=927:9
152-7х=103
152-103=7х
7х=49
х=49:7
х=7
9-2=7 цифр
169-7=162
162/2=81
<span>9+91=90 страниц в книге</span>
1, 2, 3, 5, 9, 10 ,<span>15, 18, 30, 45, 90 </span>
<span>2×2:4+1-1×789×2:2-234+5=1016
2*2=4
4:4=1
1*789=789
789*2=1578
1578:2=789
1+1=2
2-789=-787
-787-234=-1021
-1021+5=1016</span>