<span>е) 8p-2p-14,21=75,19
6р=75.19+14.21
6р=89.4
р=89.4:6
р=14.9
ж) 295,1:(n-3)=13
n-3=295.1:13
n-3=22.7
n=22.7+3
n=25.7
з) 34•(m+1,2)=61,2
m+1.2=61.2:34
m+1.2=1.8
m=1.8-1.2
m=0.6
и) 15•(k-0,2)=21
k-0.2=21:15
k-0.2=1.4
k=1.4+0.2
k=1.6</span>
1) 300*4=1200
2) 1500+1200=2700
3) 2700-900=1800
Ответ: 1800
1) x = 24 * 19
x = 456
2) x = 252:14
x = 18
3) x+8 = 12 * 9
x + 8 = 108
x = 108 - 8
x = 100
60*1/15=34
60*13/15=52
51*1/17=3
51*6/17=18
125*1/5=25
125*3/15=75
1*88/11=8
88*7/11=77