Задание: решить уравнение <span>(3
- x) + 2 </span><span>
= 5</span>
(3
- x) + 2 <span>
= 5
</span><span>3
- x + 2 <span>
= 5
</span></span>3
+ <span>2 <span>
- х = 5
5 </span></span><span>
- х = 5
-х = 5 - </span><span>5 <span>
-х = - </span></span><span>
х= </span><span>
Ответ: х= </span><span>
Выполним проверку:
</span>(3
- <span>
) + 2
= 5
1) </span><span>3
-
= 2 </span>
-
= 2
2) 2
+ 2
= 4 <span>
= 5</span>
8 (7x+3)-22 (x+1)-34x+9=56x+24-22x-22-34x+9=
56x-22x-34x+24-22+9=11
Ответ:64 427=64 000
38 388=38 400
4,8,12,16,20,24,28,32,36,40,44,48,52,56,60...
<span>(2,9*6+10,23)/9=(17,4+10,23)/9=27,63/9=3,07</span>