14-6х-6=-7+4х
-6х-4х=-7-14+6
-10х=-15
Х=1,5
100<a < 1000 123 400 750 999
10 < a <100 12 75 99
1< a<10 9 7
<span>1000 <a<10000 4000 9990
</span>
<span> 490.539:49+2*(18703-736):6=16000
18703-736=17967
2*17967=35934
35934 :6=5989
490 539 :49=10 011
10 011+5989=16000</span>
9х + 22 = 0
9х = - 22
Х = - 22/9
18 • ( - 22/9 ) + 27 = - 44 + 27 = - 17
Ответ ( - 17 )