<span>Х+148=600+154
</span>
<span>Х+148 = 754
х = 754 - 148
х = 606
_______________
606 + 148 = 600 + 154
</span>
<span>1000-Х=378-135
1000 - х = 243
х = 1000 - 243
х = 757
_________
1000 - 757 = 378 - 135
</span>
7800=7000+800. 7080=7000+80. 8007=8000+7. 30045=30000+40+5. 30450=30000+400+50. 3405=3000+400+5
200 - 100%
150 - х
200х = 15000
х = 75
Ответ. 75% семян взошло
8 4/11 + 8 7/11 = (8+8) + (4/11 + 7/11) = 16+1 = 17