123 + x + (2 x 6 ) = 200
123 . 2 + x = 200 + 100
123 . 2 + x = 200 + 100
246 + x = 300
x = 300 - 246
x = 54
hi
123.2+x=200+100
123.2+x=300
246+x=300
x=300-246
x=54
tk nha
123 . 2 + x = 200 + 100
123 . 2 + x = 300
246 + x = 300
x = 300 - 246
x = 54
tìm số nguyên x
a)82+(200-x)=123
82 + ( 200 - x ) = 123
200 - x = 123 - 82
200 - x = 59
x = 200 - 59
x = 141
Tìm số nguyên x biết rằng :
1) x-7=-5
2) |x| = 3
3) | x|+5 = 8
4) 8-x=12
5) 6x-39=5628:28
6) 8\(^2\)+(200-x) = 123
7) x+10=-14
5x-12 = 48
1) x-7=-5 => x=-5+7 = 2
2) |x|=3 => x =3 hoặc x = -3
3) |x|+5=8 => |x| = 8-5=3
=> x = 3 hoặc x = -3
4) 8-x = 12 => x = 8-12 = -4
5) 6x-39=5628:28
=> 6x-39=201
=> 6x = 201+39
=> 6x = 240
=> x = 40
6) 82+(200-x) = 123
=> 200-x = 123 - 64
=> 200-x = 59
=> x = 200-59
=> x = 141
7) x+10 = -14
=> x = -14 - 10
=> x = -24
8) 5x-12 = 48
=> 5x = 48+12
=> 5x = 60
=> x = 12
1) x = 2
2) x = 3 hoặc x = -3
3) x = 3 hoặc x = -3
4) x = -4
5) x = 40
6) x = 141
7) x = -24
8) x = 12
1) x - 7 = - 5
x = - 5 + 7
x = 2
2) lxl = 3
x = 3 hoặc x = -3
3) lxl + 5 = 8
lxl = 8 - 5
lxl = 3
x = 3 hoặc x = -3
4) 8 - x = 12
x = 8 + (- 12)
x = -4
5) 6x - 39 = 5628 : 28
6x - 39 = 201
6x = 201 + 39
6x = 240
x = 240 : 6
x = 40
6) 82 + ( 200 - x ) = 123
64 + ( 200 -x ) = 123
200 - x = 123 - 64
200 -x = 59
x = 200 - 59
x = 141
7) x + 10 = -14
x = -14 - 10
x = (-14) + (-10)
x = -24
8) 5x -12 = 48
5x = 48 + 12
5x = 60
x = 60 : 5
x = 12
k cho mk nha mn
hihii heheh hahaa
123 + x = 200
123 + x = 200
x = 200 - 123
x = 77
ung ho nha bn
x+10=-14
x-7=-5
|x|+5=8
5x-12=48
82+{200-x}=123
12 ? 3 = 4 x 4 = ?
20 x 3 = ?
90 x 1 = ?
123 - 123 = ?
10 x 9 = ? / 9 = ?
12 - 9 = ? x 9 = ?
23 - 5 = ?
123 + 12 = ?
1000 - 200 = ?
333 - 111 = ?
12 : 3 = 4 x 4 = 16
20 x 3 = 60
90 : 1 = 90
123 - 123 = 0
10 x 9 = 90 : 9 = 10
12 - 9 = 3 x 9 = 27
23 - 5 = 18
123 + 12 = 135
1000 - 200 = 800
333 - 111 = 222
\(20.3=60\)
\(90.1=90\)
\(123-123=0\)
\(10.9=\frac{810}{9}=90\)
\(23-5=15\)
\(123+12=135\)
\(1000-200=800\)
\(333-111=222\)
tui bao với nhé 2000 +10`000 - 0*123*123 =x = + 200 =-2500000+*0130076784 bằng gì à mỗi người
Tính nhanh :
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10
123 x 45 + 123 x 50 + 123 x 5
Tính nhanh:
1+2+3+4+5+6+7+8+9+10
=(1+9)+(2+8)+(3+7)+(4+6)+10+5
= 10 + 10 + 10 + 10 + 10+5
= 50 + 5
= 55
123*45+123*50+123*5
= 123*(45+50+5)
= 123 * 100
= 12300
K mk nha bn
1+2+3+4+5+6+7+8+9+10
= ( 1+10 ) + ( 2+9) + (3+8) + (4+7) + (5+6)
= 11 + 11 + 11 + 11 + 11
=11 x 5
=55
123 x 45 + 123 x 50 + 123 x 5
= 123 x ( 45 + 50 +5 )
= 123 x 100
=12300
hok tốt .
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 10 : 2 x 11 = 55
123 x 45 + 123 x 50 + 123 x 5 = 123x ( 45 + 50 + 5) = 123 x 100 = 12300
Tìm x:
A)4^x+1+4^0=65
B)2^x+2^x+4=144
C)(7^x-11)^3=2^5.5^2+200
D)45^x.45^123=45^126