Answered

Bonsoir,
est-ce juste, svp?
1/3X-1/4=3-3x
1/3+3x=3+4
10/3x=7
x=7x3/10
x=21/10

Sagot :

Bonsoir,

1/3x-1/4=3-3x

Tu as oublié 1/4

x/3 -1/4 = 3-3x

x/3 +3x = 3 +1/4

x/3 + 9x/3 = 12/4 +1/4

10x/3 = 13/4

10x = 13/4*3

10x = 39/4

x = (39/4)/ 10

x= 39/(10*4)

x= 39/40