\(10-3x=25-4x\)
\(-3x+4x=25-10\)
\(x=15\)
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5) 6x – 5 = 3 + 4x 6) x – (17 – x) = x – 7
7) 9 – 25 = (7 – x) – ( 25 + 7) 8) 10 – 2.(4 – 3x) = - 4
9) (-12)2
.x = 56 + 10. 13x 10) 2x2
– 1 = 49
Tìm x, biết:a,
70
-
5
(
x
-
3
)
45
b,
10
+
2
x
4
5
:
4
3...
Đọc tiếp
Tìm x, biết:
a, 70 - 5 ( x - 3 ) = 45
b, 10 + 2 x = 4 5 : 4 3
c, 60 - 3 x - 2 = 51
d, 4 x - 20 = 2 5 : 2 3
tim so nguyen x bt
25 – 2x = 16 – 3x
d) x – (47 – 22) = 5+ (10 – 4x) ai giup mik vs
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
4x - 15 = -25 - 3x
tim so nguyen x bt
x – 18 = 22 – 47
b) 4 2 – x = 53 – 60
c) 25 – 2x = 16 – 3x
d) x – (47 – 22) = 5+ (10 – 4x)
Bài 1: Tìm x : A) 25%x+4x=35-0,75x
B) 3/4.(x-2) - 1/2.(6-2x)=1/6x + 5
C) -1/2.(3x+5) - 2/3.(9-6x)= 3/5.(x-10) - 3
D) (1/4x - 1,5) + (5/6x-3) - (5/8x-0,5)= -4,5
4x + 25 - 3x = 75 . HỎi x bằng bao nhiêu