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Adm1n4ik333
@Adm1n4ik333
July 2022
2
3
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1) 3x+10=5x
2) -100+4x=15
3) -8+2x=14
4) x+3=8x
РЕШИТЕ УМОЛЯЮ ПОЖАЛУЙСТА!!
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Liza08082008
1)
3х + 10 = 5х
3х - 5х = - 10
- 2х = - 10
х = - 10 : (- 2)
х = 5
--------------------------
3 * 5 + 10 = 5 * 5
15 + 10 = 25
25 = 25
2)
- 100 + 4х = 15
4х = 100 + 15
4х = 115
х = 115 : 4
х = 28,75
--------------------------------
- 100 + 4 * 28,75 = 15
- 100 + 115 = 15
15 = 15
3)
- 8 + 2х = 14
2х = 8 + 14
2х = 22
х = 22 : 2
х = 11
-------------------------
- 8 + 2 * 11 = 14
- 8 + 22 = 14
14 = 14
4)
х + 3 = 8х
х - 8х = - 3
- 7х = - 3
х = - 3 : (- 7)
х = 3/7
------------------------
3/7 + 3 = 8 * 3/7
3 3/7 = 24/7
3 3/7 = 3 3/7
0 votes
Thanks 1
Inf777
Verified answer
1.
3х+10=5х
3х-5х=-10
-2х=-10
х=5
2.
-100+4х=15
4х=100+15
4х=115
х=28,75
3.
-8+2х=14
2х=14+8
2х=22
х=11
4.
х+3=8х
7х=3
х=3/7
0 votes
Thanks 1
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Report "1) 3x+10=5x 2) -100+4x=15 3) -8+2x=14 4) x+3=8x РЕШИТЕ УМОЛЯЮ ПОЖАЛУЙСТА!!..."
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Answers & Comments
3х + 10 = 5х
3х - 5х = - 10
- 2х = - 10
х = - 10 : (- 2)
х = 5
--------------------------
3 * 5 + 10 = 5 * 5
15 + 10 = 25
25 = 25
2)
- 100 + 4х = 15
4х = 100 + 15
4х = 115
х = 115 : 4
х = 28,75
--------------------------------
- 100 + 4 * 28,75 = 15
- 100 + 115 = 15
15 = 15
3)
- 8 + 2х = 14
2х = 8 + 14
2х = 22
х = 22 : 2
х = 11
-------------------------
- 8 + 2 * 11 = 14
- 8 + 22 = 14
14 = 14
4)
х + 3 = 8х
х - 8х = - 3
- 7х = - 3
х = - 3 : (- 7)
х = 3/7
------------------------
3/7 + 3 = 8 * 3/7
3 3/7 = 24/7
3 3/7 = 3 3/7
Verified answer
1.3х+10=5х
3х-5х=-10
-2х=-10
х=5
2.
-100+4х=15
4х=100+15
4х=115
х=28,75
3.
-8+2х=14
2х=14+8
2х=22
х=11
4.
х+3=8х
7х=3
х=3/7