s'il vous plait je veux la réponse maintenant I=(-7/9)[(3+1/4-19/15)-2/5-3/4)]

bonsoir

I = ( - 7/9) [( 180/60 + 15/60 - 76/60) - 2/5 - 3/4

I = ( -7/9) [ 119/60 ) - 2/5 - 3/4
I = - 833/540 - 2/5 - 3/4

i = - 833/540 - 216/540 - 405/540

I =  - 1 454/540

i = - 727/270

bonsoir 

I=(-7/9)[(3+1/4-19/15)-2/5-3/4)]
i = -7/9 [ (180/60 +15/60 -76/60) -2/5 -3/4)]
i = -7/9 [ 119/60 -2/5-3/4]
i = -7/9 ( 119/60 -28/60-45/60)
i = -7/9 (46/60)
i = -7/9 (23/30)
i = - 161/270