Rezolvați ecuațiile următoare:
1.     x + 8 = 15                                                                        
2.     6x = 42                                                                                                   
3.     4x – 12 = 16                                                                                           
4.     3•( x – 3 ) = 12                                                                                       
5.    3•( x + 2 ) + 5•( x – 4 ) = 2                                                   
6.    4•( 2x + 1 ) – 3•( x + 3 ) = 2•( x + 4 ) – 25

ma poate ajuta cineva ? ​