X:4 = 27-9 8×x=34+38 15:x = 15×1
1 15:x=15×1, x не = 0
- x = 18 8x = 72 15
4 -- = 15
x=9 x
x=72
15=15x
1 = x
x=1, x не = 0
x = 1
(3.2 + 4.5 + 2.9 + 3.1 + 4.2) : 5 = 17.9 : 5 = 3.58
12 <span>> 3
12 </span><span>> 4
12 </span><span>> 6
6 </span><span>> 3
6 </span>> 4<span>
4 </span>> 3
3<span><12
</span>4 <span><12
6</span><span><12
3</span><span><6
4</span><span><6
3</span><span><4</span>