Sagot :
9x - 5x + 2x = 33 - 13 + 22
tu calcules..
9x - 5x + 2x = 4x + 2x = 6
et
33 - 13 + 22 = 20 + 22 = 42
donc tu as
6x = 42
x = 42/6
x = 7
9x - 5x + 2x = 33 - 13 + 22
tu calcules..
9x - 5x + 2x = 4x + 2x = 6
et
33 - 13 + 22 = 20 + 22 = 42
donc tu as
6x = 42
x = 42/6
x = 7