-3<y-4
y>-3+4
y>1
(1;+∞)
3y>5y+4
3y-5y>4
-2y>4
y<4:(-2)
y<-2
(-∞;-2)
2y<y+8
2y-y<8
y<8
(-∞;8)
3/4 * (-1/5) = - 0,15
3/4 * (-1/5) = -15/100 = -3/20
3/4 * (-4/5) = -0,6
3/4 * (-4/5) = -6/10 = - 3/5
3/4 * (-4/5) = -12/20 = -3/5
<span>1.8х+2.4(х+0.2)=2.16
4.2(x+0.2)=2.16
x=4.2*2.16
x=9.072
x=9.072-0.2
x=8.872
</span>
1014 а) 75/24-64/24+4/24=5/8=0,625
б) 46/10-20/10-1/10=27/10=2,7
в)31/8-22/8+4/8=13/8
г)77/14-14/14-12/14=51/14
1015 а)(73-36)/30=34/30
б)76/30-45/30=31/30
в)194/45-66/45-27/45=101/45
г)252/60-153/60=109/60