bjr
a) 2x - 7= 9 - 6x
2x - 7 + 7 + 6x = 9 - 6x + 6x + 7
2x + 6x = 9 + 7
8x = 16
x = 16/8
x = 2
b) 1 - 3x = 2x - 14
-3x -2x = -14 - 1
-5x = -15
x = -15/(-3)
x = 5
c) 10x+4= 3x+5
10x - 3x = 5 - 4
7x = 1
x = 1/7
bonjour
2 x - 7 = 9 - 6 x
2 x + 6 x = 9 + 7
8 x = 16
x = 16/8 = 2
1 - 3 x = 2 x - 14
- 3 x - 2 x = - 14 - 1
- 5 x = - 15
x = 3
10 x + 4 = 3 x + 5
10 x - 3 x = 5 - 4
7 x = 1
x = 1/7
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bjr
a) 2x - 7= 9 - 6x
2x - 7 + 7 + 6x = 9 - 6x + 6x + 7
2x + 6x = 9 + 7
8x = 16
x = 16/8
x = 2
b) 1 - 3x = 2x - 14
-3x -2x = -14 - 1
-5x = -15
x = -15/(-3)
x = 5
c) 10x+4= 3x+5
10x - 3x = 5 - 4
7x = 1
x = 1/7
bonjour
2 x - 7 = 9 - 6 x
2 x + 6 x = 9 + 7
8 x = 16
x = 16/8 = 2
1 - 3 x = 2 x - 14
- 3 x - 2 x = - 14 - 1
- 5 x = - 15
x = 3
10 x + 4 = 3 x + 5
10 x - 3 x = 5 - 4
7 x = 1
x = 1/7