Bonjour qui peut m'aider il faut juste développer et réduire svp
A= (7-3x) + (9x-3)
B=(-2-3y) + (4-8y)
C=(4a+6) + (-3-5a)
D=(5z-7) + (8z+2)
A= (7-3x) + (9x-3)
B=(-2-3y) + (4-8y)
C=(4a+6) + (-3-5a)
D=(5z-7) + (8z+2)
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bonjour
A= 7 - 3 x + 9 x - 3
= 6 x + 4
B = - 2 - 3 y + 4 - 8 y
= - 11 y + 2
C = 4 a + 6 - 3 - 5 a
= - a + 3
d = 5 z - 7 + 8 z + 2
= 13 z - 5
Bonjour,
A= (7-3x) + (9x-3)
A= 7-3x + 9x-3
A = 4 + 6x
B = (-2-3y) + (4-8y)
B = -2-3y + 4-8y
B = 2 - 11y
C = (4a+6) + (-3-5a)
C = 4a+6 - 3-5a
C = -a + 3
D = (5z-7) + (8z+2)
D = 5z-7 + 8z+2
D = 13z -5