Ответ:
1. - 5x+8=-x
- 5x+8+x=0
- 4x=-8
x=2
2. - 5x-10=-15
- 5x=-5
x=1
3. 7x-14=6x+6
7x-6x=6+14
x=20
4. 3x-6=-x+8
4x=14
x=7/2
5. - 35+5x=6x+12
- x=47
x=-47
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Answers & Comments
Ответ:
1. - 5x+8=-x
- 5x+8+x=0
- 4x=-8
x=2
2. - 5x-10=-15
- 5x=-5
x=1
3. 7x-14=6x+6
7x-6x=6+14
x=20
4. 3x-6=-x+8
4x=14
x=7/2
5. - 35+5x=6x+12
- x=47
x=-47