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200208
@200208
July 2022
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Привет всем!!!)))Помогите плииииз!!!
Решите уровнения:
1)2t+5t+3,18=25,3
2)295,1:(n-3)=13
3)34 х (m+1,2)=61,2
4)15 х (r-0,2)=21
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ФАИНА1984
Verified answer
1)2t+5t+3,18=25,3
7t=25.3-3.18
7t=22.12
t=22.12\7
t=3.16
2)295,1:(n-3)=13
n-3=295.1\13
n-3=22.7
n=22.7+3
n=25.7
3)34 х (m+1,2)=61,2
m+1.2=61.2\34
m+1.2=1.8
m=1.8-1.2
m=0.6
4)15 х (r-0,2)=21
r-0.2=21\15
r-0.2=1.4
r=1.4+0.2
r=1.6
1 votes
Thanks 3
Madina1111
1)2t+5t+3,18=25,3
7t+3,18-25,3=0
7t-22,12=0
7t=22,12
t=22,12/7
t=3,16
3)34 х (m+1,2)=61,2
34m+40,8=61,2
34m=61,2-40,8
34m=20,4
m=20,4/34
m=0,6
4)15 х (r-0,2)=21
15r-3=21
15r=21+3
15r=24
r=24/15
r=1,6
0 votes
Thanks 1
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Answers & Comments
Verified answer
1)2t+5t+3,18=25,37t=25.3-3.18
7t=22.12
t=22.12\7
t=3.16
2)295,1:(n-3)=13
n-3=295.1\13
n-3=22.7
n=22.7+3
n=25.7
3)34 х (m+1,2)=61,2
m+1.2=61.2\34
m+1.2=1.8
m=1.8-1.2
m=0.6
4)15 х (r-0,2)=21
r-0.2=21\15
r-0.2=1.4
r=1.4+0.2
r=1.6
7t+3,18-25,3=0
7t-22,12=0
7t=22,12
t=22,12/7
t=3,16
3)34 х (m+1,2)=61,2
34m+40,8=61,2
34m=61,2-40,8
34m=20,4
m=20,4/34
m=0,6
4)15 х (r-0,2)=21
15r-3=21
15r=21+3
15r=24
r=24/15
r=1,6