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Ghostikan
@Ghostikan
July 2022
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1) 9х-7=6х+14
2) 3(4-2х)+6= -2х+4
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holmskaja
9х-7=6х+14
9х-7-6х-14=0
3х-21=0
3х=21
Х=21/3
Х=7
________
9*7-7=6*7+14
Ответ :Х=7
3(4-2х)+6= -2х+4
12-6х+6=-2х+4
12-6х+6+2х-4=0
-4х+14=0
-4х=-14 |*(-1)
4х=14
Х=14/4=7/2
_________________
3*(4-2*7/2)+6=-2*7/2+4
Ответ : х=7/2
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Answers & Comments
9х-7-6х-14=0
3х-21=0
3х=21
Х=21/3
Х=7
________
9*7-7=6*7+14
Ответ :Х=7
3(4-2х)+6= -2х+4
12-6х+6=-2х+4
12-6х+6+2х-4=0
-4х+14=0
-4х=-14 |*(-1)
4х=14
Х=14/4=7/2
_________________
3*(4-2*7/2)+6=-2*7/2+4
Ответ : х=7/2