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danr156
@danr156
August 2021
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помогите плиз по математике
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sabina2520
1) а) 3x-15,6= 0
3x=15,6
x= 15,6:3
x=5,2
Ответ: 5,2
б) 8x+2=3x-18
8x-3x=-18-2
5x=-20
x=-20:5
x=-4
ответ:-4
в)7-x/6=19x-11/8
7x*8=19x-11*6
56x=114x-66
56x-114x=-66
-58x=66
x=66:(-58)
x=-66/58
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Answers & Comments
3x=15,6
x= 15,6:3
x=5,2
Ответ: 5,2
б) 8x+2=3x-18
8x-3x=-18-2
5x=-20
x=-20:5
x=-4
ответ:-4
в)7-x/6=19x-11/8
7x*8=19x-11*6
56x=114x-66
56x-114x=-66
-58x=66
x=66:(-58)
x=-66/58