Tính giá trị x

1)
2)
3)
4)
5)
3)
X
-
29
1970
+
x 1970
29
1
x - b - c
a
a + b = x
a
+
X - 27
1972
+
- +
a
2a + b + c - 3x
X+1
2
x² + x + 1
x- x-b
bc
ac
+
+
X-a-C
b
+
x - 25
1974
x - 1972
27
+
x-a-b
C
a+c-x b + c - x
+
b
+
X-C
ab
= 2
+
x-1
2
x² -x+1
X
+
a
a + 2b + c - 3x
b
11
x - 23
X
1976
1
a
x - 1974
25
+
-
= 3
-
+
+
3
x(x² + x
4
X
+-
층)
C
2
x - 21
1978
4x
a + b + c
+
+
+ 1)
x - 19
1980
x - 1976
23
a + b + 2c - 3x
= 1
-
+
1
x - 1978 x - 19
21
+
19
||
=
544
a + b + c
9₂
C
icq:
1cy : x = a + b + c
a+b+c
x. (athtc)
|
Qdoy Khi máy qué
(athtc)
2²
=
صراخ