Bonsoir,
n°34
21-6x-10x-5= 0
-16x= -21+5
x= -16/-16
x= 1 S= {1}
Ex 32
1
6 ( x - 2) - 4x + 92
6×x + 6× - 2 - 4x + 92
6x - 12 - 4x + 92
2x + 80
2. 6 ( x - 2) - 4x + 92 = 17
6x - 12 - 4x + 92 = 17
2x + 80 = 17
2x = 17 - 80
2x = - 63
x = - 63/2
Ex 34
3 ( 7 - 2x ) - 5 ( 2x + 1) = 0
3×7 - 3×2x - 5×2x - 5×1 = 0
21 - 6x - 10x - 5 = 0
- 16x + 16 = 0
- 16x = - 16
16x = 16
x = 1
La solution de l'équation est 1
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Verified answer
Bonsoir,
n°34
21-6x-10x-5= 0
-16x= -21+5
x= -16/-16
x= 1 S= {1}
Verified answer
Ex 32
1
6 ( x - 2) - 4x + 92
6×x + 6× - 2 - 4x + 92
6x - 12 - 4x + 92
2x + 80
2. 6 ( x - 2) - 4x + 92 = 17
6x - 12 - 4x + 92 = 17
2x + 80 = 17
2x = 17 - 80
2x = - 63
x = - 63/2
Ex 34
3 ( 7 - 2x ) - 5 ( 2x + 1) = 0
3×7 - 3×2x - 5×2x - 5×1 = 0
21 - 6x - 10x - 5 = 0
- 16x + 16 = 0
- 16x = - 16
16x = 16
x = 1
La solution de l'équation est 1