Svp quelles expressions sont égales ? :
A=8x+3-(6x+3) B=(9x+5) + (-2x+3)
C=(9x+5) + (-2x+3) D=(9x+5) - 2x+3
E=(4x-9) - 2x+7 H=8x+3-6x-2
Mercii
A=8x+3-(6x+3) B=(9x+5) + (-2x+3)
C=(9x+5) + (-2x+3) D=(9x+5) - 2x+3
E=(4x-9) - 2x+7 H=8x+3-6x-2
Mercii
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Bonsoir,
A=8x+3-(6x+3)
= 8x +3-6x -3
= 2x
B=(9x+5) + (-2x+3)
= 9x+5 -2x +3
= 7x +8
C=(9x+5) + (-2x+3)
= 9x+5 -2x +3
=7x +8
D=(9x+5) - 2x+3
= 9x+5 -2x +3
= 7x +8
E=(4x-9) - 2x+7
= 4x-9 -2x +7
= 2x -2
H=8x+3-6x-2
= 2x +1
B=C=D