Г) 2/5х=6/5
х= 6×5/5×2 ( числа по возможности сокращаться)
х=3
д) 6х=4
х=6/4=0,666666
е) 8х=2
х=2/8
х =0,25
2x - 8 - 1,2x - 8,4 = -0,4
2x-1,2x = -0,4 + 8,4 +8
0,8x = 16
x = 16/0,8
x=20
Есть. В одном градусе по 60 минут ('). Которые делятся на секунды ('')
<span>8(x-14)=56
х-14=56:8
х-14=7
х=7+14
х=21
</span><span>(46-x)•19=418
46-х=418:19
46-х=22
х=46-22
х=24</span>
<span>-7+..3.= -4 </span>
<span><span>-7+(-3)= -10</span></span>
<span><span><span>7+(-3)=4</span></span></span>
<span><span><span><span>(-9)+8=-1</span></span></span></span>
<span><span><span><span><span>(-9)+(-8) = -17</span></span></span></span></span>
<span><span><span><span><span><span>9+(-8)=1</span></span></span></span></span></span>
<span><span><span><span><span><span><span>9+(-9)=0</span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span>(-11)+11=0</span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span>-12+12=0 </span></span></span></span></span></span></span></span></span>