Tìm x:

----- Nội dung dịch tự động từ ảnh -----
d2+5
2015
246
2019
2015
2 +2020
Ex
4
+
2+2020-2015
2015
2014
2+20201 + x +2020
2014
2015
(-)
E) (x+2020) (1
Ma
스
2015
72+2020=0
247
2013
2015
+
x+2020
2014
9220
2012
2+2020-2014.
2014
+
x+8
A
2014
1
2+2020
2013
2013
-
2013
ㅗ
2+ 2020-2013
2+2020
2013
2012
2013
1 +
242020
2012
)=
A
2012
x+2020-2012
2012
2+2026
2012
=-1-1+1+1