Pouvez vous m’aidez sure les 4 calculs svp

Réponse :

bonsoir

Explications étape par étape :

4x-(x+3)=5(x-1)

4x-x-3=5x-5

3x-5x=-5+3

-2x=-2

x=-2/-2

x=1

2(3x-5)=5x-1

6x-10=5x-1

6x-5x=-1+10

x=9

3(5x+4)-2(x-3)=3(x+1)-2

15x+15 -2x+6 =3x+3-2

13x+21 =3x+1

13x-3x=1-21

10x=-20

x=-20/10

x=-2

-2x=4(x+3)

-2x=4x+12

-2x-4x=12

-6x=12

x=-12/6

x=-2

Bonsoir,

4x -x-3 =5x -5

3x-3 = 5x-5

-3+5 = 5x -3x

2 = 2x

x = 2/2

x= 1

6x-10 = 5x-1

6x-5x  = -1 +10

x = 9

15x +12 -2x + 6= 3x +3 -2

13x +18 = 3x +1

13x -3x = 1 -18

10x = -17

x= -17/10

-2x = 4x +12

- 12 = 4x +2x

-12 = 6x

x = -12/6

x= -2