bjr
A = (+30)/(-5) - (-30)/(+2)
(+30)/(-5) = -30/5 = -6 (on simplifie par 5)
(-30)/(+2) = -30/2 = -15 (on simplifie par 2)
A = -6 - (-15)
= -6 + 15
= 9
bonjour
[tex] \frac{30}{ - 5} - \frac{ - 30}{2} = \frac{6 \times 5}{ - 5} - \frac{ - 15 \times 2}{2} = - 6 - ( - 15) = - 6 + 15 = 9[/tex]
bonne continuation ☺️