Răspuns :
Buna!
a) 3x - 9 = 3(x-3 )
b) 16-4x = 4(4-x )
c) 21x-3 = 3(7x - 1 )
d) 15x - 5 =5(3x-1 )
Bafta :3
a) 3x - 9 = 3(x-3 )
b) 16-4x = 4(4-x )
c) 21x-3 = 3(7x - 1 )
d) 15x - 5 =5(3x-1 )
Bafta :3