bonjour
A = 7 - 130 + 30 = - 93
B = 11 + 2 ( - 3 - 21 ) = 11 + 2 * - 24 = 11 - 48 = - 37
C = 130
- 93 - 37 + 130 = 0
Réponse :
Bonsoir
Explications étape par étape :
A = 7+ 13x (-10) - 2x (-15)
A = 7 - 130 +30
A = - 93
B = 11+2x (-3+3x (-7))
B = 11 + 2 X (-3 -21)
B = 11 +2 X -24
B = 11 -48
B = -37
C =(-5) x 13 x (-2)
C = -65 X -2
C = +130
-93 -37 +130 = 0
Oui, elle a raison
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bonjour
A = 7 - 130 + 30 = - 93
B = 11 + 2 ( - 3 - 21 ) = 11 + 2 * - 24 = 11 - 48 = - 37
C = 130
- 93 - 37 + 130 = 0
Réponse :
Bonsoir
Explications étape par étape :
A = 7+ 13x (-10) - 2x (-15)
A = 7 - 130 +30
A = - 93
B = 11+2x (-3+3x (-7))
B = 11 + 2 X (-3 -21)
B = 11 +2 X -24
B = 11 -48
B = -37
C =(-5) x 13 x (-2)
C = -65 X -2
C = +130
-93 -37 +130 = 0
Oui, elle a raison