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a) x - 23 = 15 + 58
x - 23 = 73
x = 73 + 23
x = 96
b) x : 23 = 89 - 75
x : 23 = 14
x = 14 x 23
x = 322
a) x - 23 = 15 + 58
x - 23 = 73
x = 73 + 23
x = 96
b) x : 23 = 89 - 75
x : 23 = 14
x = 14 × 23
x = 322.
![](https://rs.olm.vn/images/avt/0.png?1311)
TL:
32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 = 2475
ht
TL:
32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 + 32 x 9 + 23 x 9 = 2475
HT
![](https://rs.olm.vn/images/avt/0.png?1311)
x - 56 = 89 + 32 + 67
x - 56 = 188
x = 188 + 56
x = 244
t mk nha bạn
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
x + 7 = 89
x = 89 - 7
x = 82
x + 6 = 34
x = 34 - 6
x = 28
x + 8 = 89
x = 89 - 8
x = 81
x + 9 = 23
x = 23 - 9
x = 14
+) x+7=89
x= 89-7=82
vậy x=82
+) x+8=69
x=69-8=61
vậy x=61
+) x+6=34
x= 34-6=28
vậy x= 38
+ x+9=23
x= 23-9=14
vậy x=14
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
x+23=98
x = 98 - 23
x = 75.
Vậy x = 75
x-32=89
x = 89 + 32
x = 121
Vậy x = 121
# HOK TỐT #
x=75
x=121