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bonjour
5 x = 3 x + 3
5 x - 3 x = 3
2 x = 3
x = 3/2
8 x = 12 x + 4
8 x - 12 x = 4
- 4 x = 4
x = - 1
4 - 7 y = 10 y
- 7 y - 10 y = - 4
- 17 y = - 4
y = 4/17
7 x + 1 = - 4 - x
7 x + x = - 4 - 1
8 x = - 5
x = - 5/8
2 + 3 x = 7 - 3 x
3 x+ 3 x = 7 - 2
6 x = 5
x = 5/6
5 + 6 x = - x - 9
6 x + x = - 9 - 5
7 x = - 14
x = - 2
11 x + 3 = 8 x + 7
11 x - 8 x = 7 - 3
3 x = 4
x = 4/3
5.5 x + 1.5 = 9 x + 6
5 .5 x - 9 x = 6 - 1.5
- 3.5 x = 4.5
x = - 45/35 = 9/ 7
7 - 3 .3 x = 2 x - 9.7
- 3. 3 x - 2 x = - 9.7 - 7
- 5. 3 x = - 16.7
x = 167/53
5.1 - x = - 8 x + 1.7
- x +8 x = 1.7 - 5.1
- 7 x = - 3.4
x = 34/70 = 17/35