Răspuns :
5(2x-1)+17=52
10x-5+17=52
10x=52+5-17
10x=40
x=40/10
x=4 € N
125-3(2x-1)=98
125-(6x-3)=98
125-6x+3=98
-6x=98-125-3
-6x=-30 |:(-6)
x=5 € N
10x-5+17=52
10x=52+5-17
10x=40
x=40/10
x=4 € N
125-3(2x-1)=98
125-(6x-3)=98
125-6x+3=98
-6x=98-125-3
-6x=-30 |:(-6)
x=5 € N