Réponse:
EX 20)1/4x - 1 =1/2
1/4x=1/2+1
1/4x=3/2
x=3/2×4
x=12/2
x=6
x+1/8=3/4x_3
x_3/4x =-3_1/8
1/4x=_24/8_1/8
1/4x=_25/8
bonsoir
x/4 - 1 = 1/2
x/4 = 2/4 + 4/4
x /4 = 6 /4
4 x = 24
x = 6
x + 1/8 = 3 x / 4 - 3
8 x / 8 - 6 x / 8 = - 1/8 - 24/8
2 x /8 = - 25 / 8
2 x = - 25
x = 25/2 = 12.5
x + 3 = - 3 x + 7
x + 3 x = 7 - 3
4 x = 4
x = 1
3 x- 8 = - 1
3 x = - 1 + 8
3 x = 7
x = 7/3
1 / ( x + 2) = 2 /3
2 x + 4 = 3
2 x = - 1
x = - 1/2
4 / ( x - 1 ) = 5 / ( x + 3 )
4 x + 12 = 5 x - 5
4 x - 5 x = - 5 - 12
- x = - 17
x = 17
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Réponse:
EX 20)1/4x - 1 =1/2
1/4x=1/2+1
1/4x=3/2
x=3/2×4
x=12/2
x=6
x+1/8=3/4x_3
x_3/4x =-3_1/8
1/4x=_24/8_1/8
1/4x=_25/8
bonsoir
x/4 - 1 = 1/2
x/4 = 2/4 + 4/4
x /4 = 6 /4
4 x = 24
x = 6
x + 1/8 = 3 x / 4 - 3
8 x / 8 - 6 x / 8 = - 1/8 - 24/8
2 x /8 = - 25 / 8
2 x = - 25
x = 25/2 = 12.5
x + 3 = - 3 x + 7
x + 3 x = 7 - 3
4 x = 4
x = 1
3 x- 8 = - 1
3 x = - 1 + 8
3 x = 7
x = 7/3
1 / ( x + 2) = 2 /3
2 x + 4 = 3
2 x = - 1
x = - 1/2
4 / ( x - 1 ) = 5 / ( x + 3 )
4 x + 12 = 5 x - 5
4 x - 5 x = - 5 - 12
- x = - 17
x = 17