Răspuns :
5(x + 3) = 2(5x - 5)
5x + 15 = 10x - 10
5 x - 10x= -15 - 10x
-5x = - 25
x = 5
5x + 15 = 10x - 10
5 x - 10x= -15 - 10x
-5x = - 25
x = 5
5(x+3)=2(5x-5)
5x + 15 = 10x - 10
5x - 10x = -10 - 15
-5x = -25
x = -25 : (-5)
x = 5
5x + 15 = 10x - 10
5x - 10x = -10 - 15
-5x = -25
x = -25 : (-5)
x = 5