Răspunsuri

2014-10-05T13:00:43+03:00
148-(2x+5)=3
148-2x-5=3
-2x=3-148+5
-2x=-140
x=-140:-2
x=70
2 3 2
2014-10-05T13:00:58+03:00
148-2x-5=3
143-3=2x
140=2x
x=70