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SviterCat
@SviterCat
March 2022
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Нужна помощь СРОЧНО!
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AlinochkaAngelok
1. 2х+5=0
2х=-5
х=-5/2
х=-2,5
2. -5х+6=0
-5х=-6
х=6/5
х=1,2
3. 2х-7=6
2х=6+7
х=13/2
х=6,5
4. -5х-9=-6
-5х=-6+9
-5х=3
х=3/-5
х=0,6
5. 9х+6=10х
9х-10х=-6
-х=-6
х=6
6. х+9=-9х
х+9х=-9
10х=-9
х=9/10
х=0,9
7. -6х-5=4х
-6х-4х=5
-10х=5
х=-0,5
8. -х-7=-5х
-х+5х=7
4х=7
х=7/4
х=1,75
9. -1+2х=10х+3
2х-10х=1+3
-8х=4
х=-0,5
10. 5-2х=8х+9
-2х-8х=9-5
-10х=4
х=-0,4
11. 7-6х=-4х-6
-6х+4х=-6-7
-2х=-13
х=6,5
12. 5(х-9)=-2
5х-45=-2
5х=-2-45
5х=-47
х=9,4
13. 9(х+7)=-х
9х+63=-х
10х=-63
х=-63/10
х=6,3
14. 2(7+9х)=-6х+2
14+18х=-6х+2
24х=-12
х=24/-12
х=-2
15. -4(-7+6х)=-9х-5
28-24х=-9х-5
-15х=-33
х=2,2
16. 4+3(10х+7)=-5
4+30х+21=-5
30х=-5-21-4
30х=-30
х=-1
17.-2=-9-2(-2х+1)
-4х=2-9-2
-4х=-9
х=9/4
х=2,25
18.-1+8(7-6х)=2х+6
-2х-48х=1-56+6
50х=49
х=49/50
х=0,98
19. 4-2(5+4х)=-х+1
х-8х=-4+1+10
-7х=7
х=-1
20. 7(-5+3х)+4х=9
21х+4х=9+35
25х=44
х=44/25
х=1,76
2 votes
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SviterCat
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Answers & Comments
2х=-5
х=-5/2
х=-2,5
2. -5х+6=0
-5х=-6
х=6/5
х=1,2
3. 2х-7=6
2х=6+7
х=13/2
х=6,5
4. -5х-9=-6
-5х=-6+9
-5х=3
х=3/-5
х=0,6
5. 9х+6=10х
9х-10х=-6
-х=-6
х=6
6. х+9=-9х
х+9х=-9
10х=-9
х=9/10
х=0,9
7. -6х-5=4х
-6х-4х=5
-10х=5
х=-0,5
8. -х-7=-5х
-х+5х=7
4х=7
х=7/4
х=1,75
9. -1+2х=10х+3
2х-10х=1+3
-8х=4
х=-0,5
10. 5-2х=8х+9
-2х-8х=9-5
-10х=4
х=-0,4
11. 7-6х=-4х-6
-6х+4х=-6-7
-2х=-13
х=6,5
12. 5(х-9)=-2
5х-45=-2
5х=-2-45
5х=-47
х=9,4
13. 9(х+7)=-х
9х+63=-х
10х=-63
х=-63/10
х=6,3
14. 2(7+9х)=-6х+2
14+18х=-6х+2
24х=-12
х=24/-12
х=-2
15. -4(-7+6х)=-9х-5
28-24х=-9х-5
-15х=-33
х=2,2
16. 4+3(10х+7)=-5
4+30х+21=-5
30х=-5-21-4
30х=-30
х=-1
17.-2=-9-2(-2х+1)
-4х=2-9-2
-4х=-9
х=9/4
х=2,25
18.-1+8(7-6х)=2х+6
-2х-48х=1-56+6
50х=49
х=49/50
х=0,98
19. 4-2(5+4х)=-х+1
х-8х=-4+1+10
-7х=7
х=-1
20. 7(-5+3х)+4х=9
21х+4х=9+35
25х=44
х=44/25
х=1,76