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karimblacknice
@karimblacknice
June 2022
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Решите 2 уравнения:
а) 7 (х - 8,2) = 3х +19; б) 0,2 (5х - 6) + 2х = 0,8;
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Answers & Comments
Silnyakoff
7х - 57,4 = 3х + 19
7х - 3х = 19 + 57,4
4х = 76,4
х= 19,1
х - 1,2 + 2х = 0,8
3х = 0,8 + 1,2
3х = 2
х = 2/3
19 votes
Thanks 46
ivag2000
7x-57.4=3x+19
7x-3x=19+57.4
4x=76.4
x=19.1
x-1.2+2x=0.8
3x=2
x= 2/3
10 votes
Thanks 16
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Answers & Comments
7х - 3х = 19 + 57,4
4х = 76,4
х= 19,1
х - 1,2 + 2х = 0,8
3х = 0,8 + 1,2
3х = 2
х = 2/3
7x-3x=19+57.4
4x=76.4
x=19.1
x-1.2+2x=0.8
3x=2
x= 2/3