a)X-4,8=-32.5 b)-7x=9 c)-8,8=x+5,6 d)9-5x=0 e)-3x+20=6x-4 f)5(x-6)=7x+2 ğ)9x-3(2+4x)=7-11x
Mathématiques
fatihcam5
Question
a)X-4,8=-32.5
b)-7x=9
c)-8,8=x+5,6
d)9-5x=0
e)-3x+20=6x-4
f)5(x-6)=7x+2
ğ)9x-3(2+4x)=7-11x
b)-7x=9
c)-8,8=x+5,6
d)9-5x=0
e)-3x+20=6x-4
f)5(x-6)=7x+2
ğ)9x-3(2+4x)=7-11x
1 Réponse
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1. Réponse nonotata
Bonjour
A)X-4,8=-32.5
X = -32,5 + 4,8
X = -27,7
b)-7x=9
X = -9/7
c)-8,8=x+5,6
-x = 5,6 + 8,8
X = 14,4
d)9-5x=0
-5x = -9
X = -9/-5
X = 9/5
e)-3x+20=6x-4
-3x -6x = -4-20
-9x = -24
X = -24 /-9
X = 8/3
f)5(x-6)=7x+2
5x -30 -7x = 2
-2x = 2 + 30
-2x = 32
X = 32/-2
X = -16
ğ)9x-3(2+4x)=7-11x
9x -6-12x = 7-11x
-3x + 11x = 7+6
8x = 13
X = 13/8