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valishieva78
@valishieva78
August 2022
2
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12у+4х+4,2=12
(х+2,1)*4=15,2
(9,1-х)-2,8=2,9
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модник1
1.-
2. (х+2.1)*4=15.2
4х+ 8.4=15.2
4х=15.2-8.4
4х=6.8
х=6.8/4
х=1.7
3. (9.1-х)-2.8=2.9
9.1-х-2.8=2.9
-х=2.9+2.8-9.1
-х= -3.4
х=3.4
0 votes
Thanks 1
Топоваяkissa
12y=12-4x-4,2
12y=7,8-4x
y=0,65-1/3x
y=0,65-1/3x
4x+8,4=15,2
4x=15,2-8,4
4x=6,8
4x=6,8
x=1,7
x=17/10
x= 1 целая семь десятых
9,1-x-2,8=2,9
6,3-x=2,9
-x=2,9-6,3
-x=3,4
x=3,4
2 votes
Thanks 0
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Answers & Comments
2. (х+2.1)*4=15.2
4х+ 8.4=15.2
4х=15.2-8.4
4х=6.8
х=6.8/4
х=1.7
3. (9.1-х)-2.8=2.9
9.1-х-2.8=2.9
-х=2.9+2.8-9.1
-х= -3.4
х=3.4
12y=7,8-4x
y=0,65-1/3x
y=0,65-1/3x
4x+8,4=15,2
4x=15,2-8,4
4x=6,8
4x=6,8
x=1,7
x=17/10
x= 1 целая семь десятых
9,1-x-2,8=2,9
6,3-x=2,9
-x=2,9-6,3
-x=3,4
x=3,4