Памагити(с подробным решением) 5х – 2 = 8 12 – 3x = 7 34(x - 2) = 2 12 – (x - 2) = 3 21x – 3 = 12 3 – 4x = -5 35(x + 1) = -14 11(x - 3) = 33 3x + 12 = 3 5x – 2 = 13 2(x - 4) = 15 14 – (x – 2) = 23 3x – 12 + x = 4 4x – 21 = 4 3x + 12 – 2x = 11
5х – 2 = 8
5х=8+2
Х=10:5
Х=2
12 – 3x = 7
-3х=7-12
-3х=-5
Х=-5:(-3)
Х=1 2/3
34(x - 2) = 2
34х-68=2
34х=68+2
34х=70
Х=70/34=2 1/17
12 – (x - 2) = 3
12-х+2=3
Х=12+2-3
Х=11
21x – 3 = 12
21х=12+3
21х=15
Х=15/21=5/7
3 – 4x = -5
-4х=-5-3
-4х=-8
Х=-8:(-4)
35(x + 1) = -14
Х+1=-14/35=-2/5
Х=-2/5-1
Х=-1 2/5
11(x - 3) = 33
Х-3=33:11
Х-3=3
Х=3+3
Х=6
3x + 12 = 3
3х=3-12
3х=-9
Х=-9:3
Х=-3
5x – 2 = 13
5х=13+2
5х=15
Х=15:5
Х=3
2(x - 4) = 15
Х-4=15:2
Х-4=7,5
Х=7,5+4
Х=11,5
14 – (x – 2) = 23
14-х+2=23
Х=14+2-23
Х=-7
3x – 12 + x = 4
2х=4+12
2х=16
Х=16:2
Х=8
4x – 21 = 4
4х=4+21
4х=25
Х=25/4=6 1/4
3x + 12 – 2x = 11
Х=11-12
Х=-1
Ответ:
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