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Stasya190404
@Stasya190404
July 2022
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1) 3(2n-5)-2(3-4n)=0
-4(0,3k-0.4)+6(-0.8k+0.2)=0 реши уравнение, пожалуйста очень надо
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avshurigin
1) 3(2n-5)-2(3-4n)=0
6n-15-6+8n=0
14n-21=0
14n=21
n=3/2
2)
-4(0,3k-0.4)+6(-0.8k+0.2)=0
-1.2k+1.6-4.8k+1.2=0
-6k+2.8=0
6k=2.8
k=2.8/6
k=28/60
k=7/15
6 votes
Thanks 6
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Answers & Comments
6n-15-6+8n=0
14n-21=0
14n=21
n=3/2
2) -4(0,3k-0.4)+6(-0.8k+0.2)=0
-1.2k+1.6-4.8k+1.2=0
-6k+2.8=0
6k=2.8
k=2.8/6
k=28/60
k=7/15