Sagot :
bonjour
g (x) = 2 x /7 + 3
g ( 7) = 14 /7 + 3 = 2 + 3 = 5
g ( 1/3 ) = 2/7 x 1/3 + 3 = 2/21 + 3 = 2/21 + 63/21 = 65/21
2 x /7 + 3 = - 1
2 x / 7 + 21 /7 = - 7 / 7
2 x = - 7 - 21
2 x = - 28
x = - 14
2 x /7 + 3 = 5 /3
6 x /21 + 63/21 = 35/21
6 x = 35 - 63
6 x = - 28
x = - 28/6 = - 14/3
Bonjour à toi
1. 2/7 * 7 + 3 = 5
2. 2/7 * 1/3 + 3 = 65/21
3. 2/7 * x + 3 = -1. 2/7 * x = -1 -3
2/7 * x = -4. 2/7 / (2/7x) = -4/2/7
x= -14
4. 2/7x = 5/3 - 3. 2/7x = -4/3. 2/7 / (2/7x)= (-4/3) / 2/7. x= -14/3
En espérant t’avoir aider
1. 2/7 * 7 + 3 = 5
2. 2/7 * 1/3 + 3 = 65/21
3. 2/7 * x + 3 = -1. 2/7 * x = -1 -3
2/7 * x = -4. 2/7 / (2/7x) = -4/2/7
x= -14
4. 2/7x = 5/3 - 3. 2/7x = -4/3. 2/7 / (2/7x)= (-4/3) / 2/7. x= -14/3
En espérant t’avoir aider