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a) 6065 x 6 = 6 x 6065 = 36390
b) 2809 x 4 = 4 x 2809 = 11236
c) 2369 x 4 = 4 x 2369 = 9476
d) 1745 x 9 = 9 x 1745 = 15705
a) \(6065\times6\)
\(=2\times6065\times3\)
\(=12130\times3\)
\(=36390\)
b) \(2809\times4\)
\(=2\times2809\times2\)
\(=5618\times2\)
\(=11236\)
c) \(2369\times4\)
\(=1\times2\times2369\times2\)
\(=2\times2369\times2\)
\(=4738\times2\)
\(=9476.\)
d) \(1745\times9\)
\(=3\times1745\times3\)
\(=5235\times3\)
\(=15705\)
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1000:x+590:x=15
(1000+590):x=15
1590:x=15
x=1590:15
x=106
1000 : x + 590 : x = 15
( 1000 + 590 ) : x = 15
1590 : x = 15
x = 1590 : 15
x = 106
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[ x - 963 ] ; 5 = 236 +456
[ x - 963 ] ; 5 =692
[ x - 963 =692x5
[ x - 963 ] =3460
x =3460+963
x =4423
Đúng nhé bạn !
\(\left(x-963\right)\div5=236+456\)
\(\left(x-963\right)\div5=692\)
\(\left(x-963\right)=692\times5\)
\(x-963=3460\)
\(x=3460+963\)
\(x=4423\)
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A. 327 x (126 + x) = 67035 10208 : (108 + x) = 58
126 + x = 67035 : 327 108 + x = 10208 : 58
126 + x = 205 108 + x = 176
x = 205 - 126 x = 176 - 108
x = 79 x = 68
B. 68 x (236 - x) = 9860 17856 : (405 - x) = 48
236 - x = 9860 : 68 405 - x = 17856 : 48
236 - x = 145 405 - x = 372
x = 145 + 236 x = 372 + 405
x = 381 x = 777
C. 4768 + 85 x X = 25763 43575 - 75 x X = 4275
85 x X = 25763 - 4768 75 x X = 43575 - 4275
85 x X = 20995 75 x X = 39301
X = 20995 : 85 X = 39301 : 75
X = - 4683 X = 524,01333333.......
D. 3257 + 25286 : x = 3304 3132 - 19832 : x = 3058
25286 : x = 3304 - 3257 19832 : x = 3132 - 3058
25286 : x = 47 19832 : x = 74
x = 25289 : 47 x = 19832 : 74
x = 538,063829.... x = 268
mỏi quá
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6 x (236 - X) = 624
236 - x = 624 : 6 = 104
x = 236 - 104 = 132
b) X x a = aaa
X x a = 100a + 10a + a
X x a = 111a
Vậy x = 111
c) xx - x = 30
11 x X - X = 30
X x (11 - 1) = 30
X x 10 = 30
X = 30 : 10 = 3
Vậy x = 3
a) 68 x (236 - x) = 9860
236 - x = 9860 : 68
236 - x = 145
x = 236 - 145
x = 91
b) x - 590 : 5 + 2369 = 78945
x - 118 + 2369 = 78945
x - 118 = 76576 - 2369
x - 118 = 76576
x = 76576 + 118
x = 76694