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Manonjutard
@Manonjutard
May 2019
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N26 svp j'y arrive pas
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WilliamLacaille
A) -7x -2x +15
-15
=2x
-2x
-3+15
-9x = 12
-9x/
-9 =
12/
-9
x= -12/9
b) 6x-7x-10+10=7x-7x+3+10
-x=13
-x/-1=13/-1
x=-13
c) 4t+10t-3+3=-10t+10t+4+3
14t=7
14t/14= 7/14
t=0.5 ou 1/2
d) y+3y+1-1=-3y+3y+4-1
4y=3
4y/4=3/4
y= 0.75 ou 3/4
En espérant t'avoir aidé :)
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manonjutard
Merci bcp :)
WilliamLacaille
De rien :)
nadiab
Résoudre chaque équation
a. -7x+15=2x-3
-7x-2x=-3-15
-9x=-18
x= -18/-9
x=2
b. 6x-10=7x+3
6x-7x=3+10
-x=13
x=-13
c. 4t-3=-10t+4
4t+10t=4+3
14t=7
t=7/14=1/2
d. y+1=-3y+4
y+3y=4-1
4y=3
y=3/4
0 votes
Thanks 0
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Lista de comentários
-9x = 12
-9x/-9 = 12/-9
x= -12/9
b) 6x-7x-10+10=7x-7x+3+10
-x=13
-x/-1=13/-1
x=-13
c) 4t+10t-3+3=-10t+10t+4+3
14t=7
14t/14= 7/14
t=0.5 ou 1/2
d) y+3y+1-1=-3y+3y+4-1
4y=3
4y/4=3/4
y= 0.75 ou 3/4
En espérant t'avoir aidé :)
a. -7x+15=2x-3
-7x-2x=-3-15
-9x=-18
x= -18/-9
x=2
b. 6x-10=7x+3
6x-7x=3+10
-x=13
x=-13
c. 4t-3=-10t+4
4t+10t=4+3
14t=7
t=7/14=1/2
d. y+1=-3y+4
y+3y=4-1
4y=3
y=3/4