Aide en math SVP : résoudre chaque équation : A. 6x + 1 = 2x + 6 B. 5x - 8 = 2 + 3x C. 2 - 5x = 1+ 6x D. -4 + 8x = 3x - 9 E. 3( x +1 ) = x + 6 F
Mathématiques
lisette98
Question
Aide en math SVP : résoudre chaque équation :
A. 6x + 1 = 2x + 6
B. 5x - 8 = 2 + 3x
C. 2 - 5x = 1+ 6x
D. -4 + 8x = 3x - 9
E. 3( x +1 ) = x + 6
F. x + 35 = 2( x + 10 )
G. -2(3x + 5) = 7 + x
H. 2( 7-2x ) = -3( x-7 )
A. 6x + 1 = 2x + 6
B. 5x - 8 = 2 + 3x
C. 2 - 5x = 1+ 6x
D. -4 + 8x = 3x - 9
E. 3( x +1 ) = x + 6
F. x + 35 = 2( x + 10 )
G. -2(3x + 5) = 7 + x
H. 2( 7-2x ) = -3( x-7 )
1 Réponse
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1. Réponse domino44
A/ 6x+1=2x+6 B/ 5x-8=2+3x C/ 2-5x = 1+6x
6x-2x=6-1 2x=10 1=11x
4x=5 x=10/2 x=1/11
x=5/4 x=5
D/ 5x=-5 E/ 3x+3 = x+6 F/ x+35 = 2x+20
x=-5/5 2x = 3 x=15
x=-1 x=3/2
G/ -6x-10 = 7+x H/ 14-4x = -3x+21
-17 = 7x x=-7
x=-17/7