Ответ:
Объяснение:
1) 3x-(2x+3)/2=(x+6)/3
(6x-2x-3)/2=(x+6)/3
12x-9=2x+12
12x-2x=12+9
x=21/10
x=2,1
2) (6x-7)/5 -(3x+1)/6=(11-x)/15
(36x-42-15x-5)/30=(2(11-x))/30 ×30
21x-47=22-2x
21x+2x=22+47
x=69/23
x=3
3) (5x-3)/9 -(4x+3)/6=x-1
(10x-6-12x-9)/18=x-1
-2x-15=18x-18
18x+2x=18-15
x=3/20
x=0,15
4) (8x-5)/3 -(4x+3)/4 +(2-9x)/2=-3
(32x-20-12x-9+12-54x)/12=-3
-34x-17=-36
-34x=17-36
x=19/34
5) (8x²-3x)/16 -(6x²+1)/12=-1
(24x²-9x-24x²-4)/48=-1
-9x-4=-48
-9x=4-48
x=44/9
x=4 8/9
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Answers & Comments
Ответ:
Объяснение:
1) 3x-(2x+3)/2=(x+6)/3
(6x-2x-3)/2=(x+6)/3
12x-9=2x+12
12x-2x=12+9
x=21/10
x=2,1
2) (6x-7)/5 -(3x+1)/6=(11-x)/15
(36x-42-15x-5)/30=(2(11-x))/30 ×30
21x-47=22-2x
21x+2x=22+47
x=69/23
x=3
3) (5x-3)/9 -(4x+3)/6=x-1
(10x-6-12x-9)/18=x-1
-2x-15=18x-18
18x+2x=18-15
x=3/20
x=0,15
4) (8x-5)/3 -(4x+3)/4 +(2-9x)/2=-3
(32x-20-12x-9+12-54x)/12=-3
-34x-17=-36
-34x=17-36
x=19/34
5) (8x²-3x)/16 -(6x²+1)/12=-1
(24x²-9x-24x²-4)/48=-1
-9x-4=-48
-9x=4-48
x=44/9
x=4 8/9