Sagot :
Bonjour
a. 7x + 3 = - 4 + 7(x + 1)
7x + 3 = - 4 + 7x + 7
7x - 7x = - 4 - 3 + 7
0x = 0 → Admet une infinité de solutions.
b. 2(x - 1) = x + 3 + x
2x - 2 = x + 3 + x
2x - x - x = 3 + 2
0x = 5 → Impossible.
Bonjour
a. 7x + 3 = - 4 + 7(x + 1)
7x + 3 = - 4 + 7x + 7
7x - 7x = - 4 - 3 + 7
0x = 0 → Admet une infinité de solutions.
b. 2(x - 1) = x + 3 + x
2x - 2 = x + 3 + x
2x - x - x = 3 + 2
0x = 5 → Impossible.