7(х+5)=7х+35
4(х-3)=4х-12
12(8+х)=96+12х
А)
0.(4)=4/9
б)
1.(9)=2/1
в)
5.3(73)=532/99
г)
0.(56)=56/99
Ответ:
1. 1) -197 -26 - 23 0 6 105 195 807
2) -289 - 101 0 28 605 965 1028
2. 2) 1069 215 65 17 0 - 217 - 713
1) 2523 690 256 198 0 -27 - 616 - 1069
<span>7/4х + ( х - 4/7 ) • 7/12 + 145 = х
7/4х+7/12х-1/3+145=х
28/12х-х=1/3-145
1(1/3)х=-144(2/3)
х=-144(2/3)/1(1/3)
х=-108,5</span>