Các câu hỏi tương tự
Bài 8: tìm x
a) x + 10 = 20
b) 2 . x + 15 = 35
c) 3 ⋅ ( x + 2 ) = 15
d) 10 . x + 15 . 11 = 20 . 10
e) 4 . ( x + 2 ) = 3 . 4
f) 33 x + 135 = 26 . 9
g) 2 . x + 15 + 16 + 17 = 100
h) 2 . (x + 9 + 10 + 11) = 4 . 12 . 25
a ) - 8 / 24 + - 4 / 12
b ) - 20 / 35 + 16 / 24
c ) - 3 / 9 + - 6 / 15
d ) 3 / 13 - 4 / 10
e ) 5 / 17 - 9 / 15
g ) 9 / 18 - 6 / 15 + 3 / - 9
h ) 5 / 4 - 1 / 2 + - 7 / 8
a, | x+6 |= (-7)+ |-20|
b, | 4-x |= (-6)+ |-15|
c, | x-8 |= (-4)+ |-20|
d, | 20-x |=15- |-4|
Ai làm nhanh nhất mình tích cho
Tìm x :
a) 57 ( 9 x - 27 ) = 0
b) 15 + 4 ( x - 2 ) = 95
c) 6 ( x + 8 ) + 40 = 100
d) 17 x -20 = 14
e) 27 - ( x + 16 ) = 7
g) 15 : ( x + 2 ) = ( 27 + 3 ) : 10
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)
a) -12+x=5x-20
b) 4x-10=15-x
c) 7x-4=20+3x
d) 3x-6=5x+2
e) 5x-7=-21-2x
f) 15-x=4x-5
g) x+15=20-4x
d] D=6/3*5+6/5*7+...+6/97*99
e] E=1/2*5+1/5*8+1/8*11+1/17*20
g] G=5/2*1+4/1*11+3/11*2+1/2*15+13/15*4
d,x-(-25+x)=13-x
e, 15-(30+x)=x-(27-|-8|)
f, (12x-4^3).8^3=4.8^4
g, [119-(3^3-10)].x=2448
h, [(10-x).2+51]:3-2=3
i,(x-12)-15=20-(17+x)
k, -12-|13-x|=-21
l, 8 bé hơn hoặc bằng|x-6|<9
m,720-[41-(2x-5)]=2^3.5
Tìm x, biết:
a) ( 15/10 + 15/40 + 15/88 + 30/11.17 + 15/17.20) . x = 3/4
b? 6: ( 0,6 x + 8 /20 + 9 0 = 0,6