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FireKing11111
@FireKing11111
August 2022
1
3
Report
1) a)3x=28-x
b) 6x-19=-x-10
c)5x+12=8x+30
d)7-2x=3x-18
e)33+8=-5x+72
f)2x+9=2x-4
помогите срочно пож
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dmitrenkoyulya
Verified answer
a)3x=28-x
3х+х=28
4х=28
х=7
b) 6x-19=-x-10
6х+х=19-10
7х=9
х=9/7
5x+12=8x+30
5х-8х=30-12
-3х=18
х=-6
7-2x=3x-18
-2х-3х=-18-7
-5х=-25
х=5
33+8=-5x+72
33+8-72=-5х
-31=-5х
х=6,2
2x+9=2x-4
2х-2х=-4-9
0 не дорівнює-13
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FireKing11111
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Answers & Comments
Verified answer
a)3x=28-x3х+х=28
4х=28
х=7
b) 6x-19=-x-10
6х+х=19-10
7х=9
х=9/7
5x+12=8x+30
5х-8х=30-12
-3х=18
х=-6
7-2x=3x-18
-2х-3х=-18-7
-5х=-25
х=5
33+8=-5x+72
33+8-72=-5х
-31=-5х
х=6,2
2x+9=2x-4
2х-2х=-4-9
0 не дорівнює-13