2012 x 123
3030 x 23
3456 x 456
x - 3456 -456 = 56 .Tìm x.(trình bày cả bài giải)
x - 3456 - 456 = 56
x - 3456 = 56 + 456
x - 3456 = 512
x = 512 + 3456
x = 3968
8+x+d+f+g+3456=23 x=...... d=...... f=...... g=......
X x 12 = 456 x 16 x : (23 x 6) = 9
`x xx 12=456 xx 16`
`x xx 12=7296`
`x=7296:12`
`x=608`
`-------`
`x : (23xx6)=9`
`x :138=9`
`x=9 xx 138`
`x=1242`
a)
`X xx 12 = 456 xx 16`
` X xx 12 = 7296`
`X = 7296:12`
`X=608`
b)
`x:(23xx6)=9`
`x:138=9`
`x=9xx138`
`x=1242`
\(x\times12=456\times16\)
\(x\times12=7296\)
\(x=7296:12\)
\(x=608\)
______________________________
\(x:\left(23\times6\right)=9\)
\(x:138=9\)
\(x=138\times9\)
\(x=1242\)
( 123 x 456 - 23 x 16 ) x ( 12 x 9 -4 x 27 )
( 123 . 456 - 23 . 16 ) . ( 12 . 9 - 4 . 27)
= ( 56088 - 368) . ( 108 - 108 )
= 55720 . 0
= 0
( 123 x 456 - 23 x 16 ) x ( 12 x 9 -4 x 27 )
=( 123 x 456 - 23 x 16 ) x (108 -108)
=( 123 x 456 - 23 x 16 ) x 0=0
( 123 x 456 - 23 x 16 ) x ( 12 x9 - 4 x 27 ) = ( 123 x 456 - 23 x 16 ) ( x 108 - 108 )
= 557 / 0
= 0
Chúc bạn học tốt Kane thân mến !
1) 20,22 : 0,5 + 20,22 : 0,125
2) 3456 x 37 + 3456 x 19 + 3456 x 45 - 3456
1) 20,22 : 0,5 + 20,22 : 0,125
= 20,22 x 2 + 20,22 x 8
= 20,22 x (2 + 8)
= 20,22 x 10
= 202,2
2) 3456 x 37 + 3456 x 19 + 3456 x 45 - 3456
= 3456 x 37 + 3456 x 19 + 3456 x 45 - 3456 x 1
= 3456 x (37 + 19 + 45 - 1)
= 3456 x 100
= 345600
( 123 x 456 -23 x46 ) x ( 12 x 9 - 4 x 27 )
(123x456-23x46)x(12x9-4x27)
=.......x.....
=0
( 123 * 456 - 23 * 46) * (12 * 9 - 4 * 27) = 55030 * 0
= 0.
( 123 . 456 - 23 . 46 ) . ( 12 . 9 - 4 . 27)
= ( 123 . 456 - 23 . 46 ) . ( 108 - 108 )
= ( 123 . 456 - 23 . 46 ) . 0
= 0
tìm x thuộc Z
2x-{234-[-456+(-543-3x)]}=23
6(x-23)-5(x+12)=-(-245)
456 :2 *18 +456:3 _102
1482 :x +23 =80
456:2*18 + 456:3 - 102
= 228 * 18 + 152 - 102
= 4104 + 152 - 102
= 4104+ 50
= 4154
1482:x + 23= 80
1482: x = 80- 23
1482 : x= 57
x= 1482: 57
x= 26
học tốt!
456 :2 *18 +456:3 _102
=228x18+(456:3)-102
=4164+152-102
=4154
1482 :x +23 =80
=1482:x=80-23
=>1482:x=57
=>x=1482:57
=>x=26
chúc bạn hok tốt
\(1482:x+23=80\)
\(1482:x=80-23\)
\(1482:x=57\)
\(x=1482:57=26\)
Tìm x : x + ( 123 + 456 ) - ( 23 + 56 ) = 789
x + ( 123 + 456 ) - ( 23 + 56 ) = 789
x+579-79=789
x+579=789+79= 1568
x=1568-579=989
nhớ kick cho ình nha
Tìm x :
x + ( 123 + 456 ) - ( 23 + 56 ) = 789
x + 579 - 79 = 789
x + 579 = 789 + 79 = 868
x = 868 - 579
x = 289