nadiab
Bonjour, a. 13+x-6= x+7 b. -5-4+2x= 2x-9 c. 10-x-3-3x+6= -4x+13 d. 5+2x+7+7x= 9x+12 e. x-8-(2+4x-9+5x)= x-8-(-7+9x)= x-8+7-9x= -8x-1
6x+12= x+5(x+2)+2 => x+5x+10+2 => 6x+12 7x+5-(x-7)= 7x+5-x+7= 6x+12 2(2+3x)= 4+6x ou 6x+4 3(2x+4)= 6x+12 6(x+2)=6x+12 et 5x+7 est tt seul Tu vois comment tu peux relier.
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=12+x =-9+2x =10-x-3-3x+6
= 13-4x
d) (5+2x)-(-7-7x)=5+2x+7+7x e) x-8-(2+4x-(9-5x))=x-8-(2+4x-9+5x)
=9x+12 = x-8-2-4x+9-5x
= -8x-1
a. 13+x-6= x+7
b. -5-4+2x= 2x-9
c. 10-x-3-3x+6= -4x+13
d. 5+2x+7+7x= 9x+12
e. x-8-(2+4x-9+5x)= x-8-(-7+9x)= x-8+7-9x= -8x-1
6x+12= x+5(x+2)+2 => x+5x+10+2 => 6x+12
7x+5-(x-7)= 7x+5-x+7= 6x+12
2(2+3x)= 4+6x ou 6x+4
3(2x+4)= 6x+12
6(x+2)=6x+12
et 5x+7 est tt seul
Tu vois comment tu peux relier.