Răspunsuri

2014-09-18T16:45:56+03:00
(3*x-5):4+(275-2*30):5=53
(3*x-5):4+(275-60)=53*5
(3*x-5):4+215=265
(3*x-5):4=265-215
(3*x-5):4=50
3*x-5=50*4
3*x-5=200
3*x=200+5
3*x=205
x=205:3
x=68,(3)