Các câu hỏi tương tự
1) 7x.497902) 2x.41283) 3x-124.54) 3x+15425) 4.2x-31256) 5x515:537) 4x415:168) 7x720:7109) 11x1111:1110) 315.3x33011) 10+2x45:4312) 20+5x55:5313) 4x-2025:2214) 15+2x380:377Chu y: dau . la dau nhan.
Đọc tiếp
1) 7x.49=790
2) 2x.4=128
3) 3x-1=24.5
4) 3x+15=42
5) 4.2x-3=125
6) 5x=515:53
7) 4x=415:16
8) 7x=720:710
9) 11x=1111:11
10) 315.3x=330
11) 10+2x=45:43
12) 20+5x=55:53
13) 4x-20=25:22
14) 15+2x=380:377
Chu y: dau "." la dau nhan.
Giúp mình v
Bài10872917292872917 tìm x bt
5x-16=40+x
4x-10=15-x
-12+x=5x-2
7x-4=20+3x
5x-7=20+3x
x+15=7+6x
17-x=7-6x
3x+(-21)=12-8x
125:(3x-13)=25
541+(218-z)=735
3(2x+1)-19=14
175-5(x+3)=85
4x-40=|4|+12
x+15=20-4x
8x+|-3|=-4x+39
6(x-2)+(-2)=20-4x
A)3x - 15= -25 - x
B)49 - 3x= 4x + 14
Ai giải được hai bài này thì có thể giảng ở dưới cho em được không ạ:))
Bài 1: Tìm x
a) 5x - 7 = -19 + 2x
b) 35- 3x= 45 - 4x
c) 4x - 15 = - 75 - x
d) x - 12 = ( - 9 ) - 15
Bài 2 : Tìm x
a) 11- ( 15 + 14 ) = x - ( 25 - 9 )
b) 4x - 6 = - 20 + 3x
c) 45 - 2x = 55 - 5x
d) 6x - 15 =- 55 - 2x
a) 3x + 2 . (-7) = 10
b) 25 -(30 + x) = - (27 - 8)
c) 15 - x = 12 - ( -14)
d) (4x + 11) - ( x + 34) = 67
e) 3 - 17 - x = 289 - (36 + 289)
tìm x
17x – ( -16x – 37) = 2x +
-2x –3. (x – 17) = 34 – 2(-x + 25
17x + 3. ( -16x – 37) = 2x + 43 - 4x
103 -57: [-2. (2x – 1)2 – (-9)0] = -106
3x – 32 > -5x + 1
15 + 4x < 2x – 145
-3. (2x + 5) -16 < -4. (3 – 2x)
-2x + 15 < 3x – 7 < 19 – x
x + (x+1) + (x+2) + (x+3) + .... + 13 + 14 = 14
25 + 24 + 23 +...+ x + (x - 2) + (x – 3) = 25
Tìm x
A. 31x - 3x -5x +25
B. 15(x -2) + 3(5-1) = -14
C. 4x (41 -52) -35x = -(7-2x)
D. 53 -(3x -17) + 218= 19 + 45x
A.(15/10x+25):2/3=60
B.5/2-x=1
C.x-0.3x=1.3
D.3/4x-2/3x=-5/12
(25-32)-(7+x)=47-25
3x-16=40+x
2(4x-30)-3(2x+15)=-75
-4xI2x-3I=(-16):I-4I
Giúp mình càng sớm càng tốt nhoa!!!
Cảm ơn!!