Sagot :
E = 12 - ( 7 - 9 ) - ( 10 + 9 )
12 - ( -2) -(+19)
12 + 2 -19 = -5
P = - 9 +( - 4 - 7 + 6 ) + ( - 5 + 9 - 2 )
-9 +( -11 +6) + ( -7 +9)
-9 + -5 +2
-14 +2 = -12
T = 3 - ( 5 - 9 ) - (12 - 4 + 7 )
3 -(-4) - ( +19 -4)
3 +4 -( +15)
+3 +4 -15
+7 -15 = -8
12 - ( -2) -(+19)
12 + 2 -19 = -5
P = - 9 +( - 4 - 7 + 6 ) + ( - 5 + 9 - 2 )
-9 +( -11 +6) + ( -7 +9)
-9 + -5 +2
-14 +2 = -12
T = 3 - ( 5 - 9 ) - (12 - 4 + 7 )
3 -(-4) - ( +19 -4)
3 +4 -( +15)
+3 +4 -15
+7 -15 = -8
E = 12 - ( 7 - 9 ) - ( 10 + 9 )
= 12 + 2 - 19
= 14 - 19
= -5
P = - 9 +( - 4 - 7 + 6 ) + ( - 5 + 9 - 2 )
= -9 + ( -11 + 6 ) + ( 4 - 2 )
= -9 - 5 + 2
= -14 + 2
= -12
T = 3 - ( 5 - 9 ) - (12 - 4 + 7 )
= 3 + 4 - ( 8 + 7 )
= 7 - 15
= -8
J'ai vérifier a la calculatrice est tout est juste ;)
= 12 + 2 - 19
= 14 - 19
= -5
P = - 9 +( - 4 - 7 + 6 ) + ( - 5 + 9 - 2 )
= -9 + ( -11 + 6 ) + ( 4 - 2 )
= -9 - 5 + 2
= -14 + 2
= -12
T = 3 - ( 5 - 9 ) - (12 - 4 + 7 )
= 3 + 4 - ( 8 + 7 )
= 7 - 15
= -8
J'ai vérifier a la calculatrice est tout est juste ;)