👤

Suppression de parenthèses
A = 5+ (2x +3) =
B = (4x +2)+(3x + 6) =
C = (2x +3) - (7* - 5) =
D = (6 + 2x) - (-6x + 4) =
E = 3(4x - 5) + 4(7 - 3x) =
F = (4x + 2) - 5(2x - 4) =


Répondre :

Réponse:

A=5+(2x+3)

=5+2x+3

A =2x+8

B=(4x+2)+(3x+6)

=4x+2+3x+6

B=7x+8

C=(2x+3)-(7x-5)

=2x+3-7x+5

C=-5x+8

D=(6+2x)-(-6x+4)

=6+2x+6x-4

D=8x+2

E=3(4x-5)+4(7-3x)

=12x-15+28-12x

E=13

F=(4x+2)-5(2x-4)

=4x+2-10x+20

F=-6x+22