Sagot :
bonjour
ex 1
on calque l'exemple
A = (2+3)x= 5x
B = (3-2)x =x
C = (5+3-5)x = 3x
et D = (4-3+2)x = 3x
ex 2
pareil on calque l'exemple
A = (2+3)x + 3+4 = 5x+7
B = 7x+8
C= 3x+3
D = 4x+7
bonjour
ex 1
on calque l'exemple
A = (2+3)x= 5x
B = (3-2)x =x
C = (5+3-5)x = 3x
et D = (4-3+2)x = 3x
ex 2
pareil on calque l'exemple
A = (2+3)x + 3+4 = 5x+7
B = 7x+8
C= 3x+3
D = 4x+7