👤

Va rog urgenttt !! Multumesc :)
1.Rezolvati ecuatiile:
a) 5x + 4 = 2x + 13
b) 15+ 16 ( x-1 ) = 15


Răspuns :

a) 5x - 2x = 13 - 4
3x = 9
x = 9 : 3
x = 3
b) 15 + 16x - 16 = 15
16x = 15 - 15 + 16
16x = 16
x = 16 : 16
x = 1