Aidez moi svp A= 5+(2x+3) B=5x - (3-4x) C= (x-4) -6 D= (4x+2) + (-6x-2) E= - (-3x-1) + (x-3) F= 8x - (5x+2) + (3-4x) Merci d'avance

A=5+(+2x+3)
=5+2x+3
=5+3+2x
=8+2x
B=5x-(3-4x)
=5x-3+4x
=5x+4x-3
=9x-3
C=(x-4)-6
=x-4-6
=x-10
D=(4x+2)+(-6x-2)
=4x+2-6x-2
=4x-6x
=-2x
E=-(-3x-1)+(x-3)
=3x+1+x-3
=4x-2
F=8x-(5x+2)+(3-4x)
=8x-5x+2+3-4x
=3x+5-4x
=x+5

A=5+2x+3
=8+2x.
B=5x-3+4x
=9x-3.
C=-6x+4.
D=4x+2-6x-2
=-2x.
E=+3x+1.
F=8x-5x-2+3-4x
=-1x-5.
Voilà et ton mieux);