Các câu hỏi tương tự
A=1+2+3+....+20
B=1+3+5+.....21
(2x-1) • 2 = 13
32•(x-10)=32
Tìm x
Bài 3 : Tìm x Z biết.
a) x(x + 2) = 0 e) 7x – 13 = 3 2 .4
b) 5 – 2x = -7 f) 155 – 5(x + 3) = 80
c) (x + 3)(x – 4) = 0 g) 119 + 3 3 .x = 2 3 . 5 2
d) – 32 – 4(x – 5) = 0 h) 3(2x + 1) – 19 = 14
a)5-(13-3x)=109-(32+109)
b)/3x-6/+(x-2^2)=0
c)/7-2x/=-13-5.(-8)
1) –45 + 5.(–2x) = 95
2) x.(12 + x).(71 – x) = 0
3) (x – 11).(x + 12).(–x – 13) = 0
4) |2.x – 15| = 7
5) –2.|x + 32| = –112
Tìm x biet:
a,5/2x+x=32/15
b,x-7/2x=-32/15
c,-7/3x-7/4x+11/3=18/5
d,-5/6-3x=2/3
e,2x-5/9=-2/3
f,1/2-2/3x=7/12
g,7-|2x-3|=4
h,(19x+2.5^2):14=(13-8)^2-4^2
i,3/4x-2/3=2/7.1/6+5/7.1/6
k,(x+1/2).(2/3-2x)=0
l,x/2013-1/10-1/15-1/21-........-1/120=5/8
Tìm x biết:a,
2
3
x
+
5
2
x
2
5
2
+
2
3
-
33
b, ...
Đọc tiếp
Tìm x biết:
a, 2 3 x + 5 2 x = 2 5 2 + 2 3 - 33
b, 260 : x + 4 = 5 2 3 + 5 - 3 3 2 + 2 2
c, 720 : [ 41 - 2 x - 5 ] = 2 3 . 5
d, 3 2 - 2 x - 12 + 35 = 5 2 + 279 : 3 2
BÀI 4 . TÌM x
1 . X + 5 . 2 - { 32 + 16 . 3 : 6 } = 0
2 . { X -1 }^ 5 = 32
3 . { 2X - 3 }^ 2 = 25
Tìm x, biết
a) 21x = 63;
b) 32. |x| = 96;
c) 11x + 5 = 60;
d) 2 . |x| + 5 = 32 - 13.
Tìm x, biết a) 21x = 63; b) 32. x = 96 c) 11x + 5 = 60 d) 2 . x + 5 = 32 - 13