a)210-5x=200
5x=210-200
5x=10
x=10:2
x=5
B)210-5(x-10)=200
5(x-10)=210-200
5(x-10)=10
x-10=10:5=2
x=2+10=12
c)450:[41-(2x-5)]=3 mũ 2 .5
450:[41+5-2x]=45
41+5-2x=450:45
41+5-2x=10
2x=36
x=18
D)210:x-10=20
210:x=20+10
210:x=30
x=210:30
x=7
E)(5x-39).7+3=80
(5x-39).7=77
5x-39=11
5x=50
x=10
F(2x+1):7=2 mũ 2 nhân 3 mũ 2
(2x+1):7=36
2x+1=252
2x=251
x=251/2
Tìm x, biết:
a) 210 - 5.x = 200;
b) 210:x - 10 = 20;
c) 210 - 5.( x -10) =200;
d) ( 2 x + 1 ) : 7 = 2 2 + 3 2 ;
e) 450 : [ 41 - ( 2 x - 5 ) ] = 3 2 . 5 ;
f) (5x - 39).7 + 3 = 80.
Tìm x, biết:
a) 210 – 5.x = 200;
b) 210 : x – 10 = 20;
c) 210 – 5.( x – 10) =200;
d) (2x + l):7 = 22+32;
e) 450:[41–(2x–5)] = 32.5;
f) (5x – 39).7 + 3 = 80.
210 - 5 (x- 10) = 200
(5x-39)x7+3=80
(2x+1):7=2 mũ 3 + 3 mũ 2giúp mik vớia,210-5(x-11)=200
b,(2x+1):7=2^2+3^2
c,450:[41-(2x-5]=3^2.5
d,(5x-9).7+3=80
Bài 1.Tìm x
a,210-5x=200
b,210-5(x-10)=200
c,450:[41-(2x-5)]=3^2.5
d,350:x+10=20
e,36:(x-5)=2^2
f,[3.(70-x)+5]:2=46
Bài 1.Tìm x
a,210-5x=200
b,210-5(x-10)=200
c,450:[41-(2x-5)]=3^2.5
d,350:x+10=20
e,36:(x-5)=2^2
f,[3.(70-x)+5]:2=46
Câu hỏi tương tự Đọc thêm
Toán lớp 6
Tìm x, biết:
a,2x-5^2=3
b,(x+1)^2=(x+10)^0
c,x-3 chia hết cho 7,x<50
d,x chia hết cho 2x
e,5x-2 chia hết cho 3x+1
Giúp mình nhé
(^ có nghĩa là mũ nha!!!)
giúp mình giải bài toán.......
1)3x-6=5x+2
2)15-x=4x-5
3)x-15=6+4x
4)-12+x=5x-20
5)7x-4=20+3x
6)5x-7=-21-2x
7)x+15=20-4x
8)17-x=7-6x
9)-4|x-2|=-8
10)-7|x+4|=2.(-7)
tìm x
5x -x =4088 + (5 ^7 + 5^9 ) . (6 ^8 + 6^10 ) . (2^4-4^2)
3 ^2 . ( 15 - 2x )- 5 ^2 = 5 . 2 ^2
152 - ( 2x-1)^3 = 3^0.3^1.3^2
AI NHANH MÌNH TICK NHA
