<span>х+7 дробь 2= х+1 дробь 8</span>
<span>8(х+7)=2(х+1)</span>
<span>8х-2х=2-56</span>
<span>6х=-54</span>
<span>х=-9</span>
<span><span>24-5х=3х-24</span></span>
<span><span>24+24=3х+5х</span></span>
<span><span>48=8х</span></span>
<span><span>х=6</span></span>
<span><span><span>х+4=9дробь х+4</span></span></span>
<span><span><span>(х+4)^2=9</span></span></span>
<span><span><span>х+4=корень из9</span></span></span>
<span><span><span>х+4=3</span></span></span>
<span><span><span>х=-1</span></span></span>
<span><span><span><span>х2-11=0</span></span></span></span>
<span><span><span><span>х2=11</span></span></span></span>
<span><span><span><span>х=5целых и одна вторая</span></span></span></span>
1)если аргумент х = 2, то функция Y=
y=8x2-3
y=13
2) если функция =19, то аргумент Х=...
19=8х-3
8х=22
х= 2.75
4х+4=15х-14х-35
-25х=-39
х=-39:(-25)
х=1,56