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a) 8 359 + 305 x 38
= 8359 + 11590
= 19949
b) 4 824 - (9 365 - 5 465) : 15
= 4824 - 3900 : 15
= 4824 - 260
= 4564
a) 8 359 + 305 x 38 = 8 359 + 11 590
= 19 949
b) 4 824 – (9 365 – 5 465) : 15 = 4 824 – 3 900 : 15
= 4 824 – 260
= 4 564
![](https://rs.olm.vn/images/avt/0.png?1311)
46500 - 465 x 86 + 456 x 68 - 465 x 72
= 46500 - 456 x ( 86 + 68 - 72 )
= 46500 - 456 x 82
= 45600 - 37392
= 8208
bạn ơi
465.86+456.68-465.72 nha
chứ không phải là 456.86+456.68-456.72 nha
![](https://rs.olm.vn/images/avt/0.png?1311)
\(465+9+43556\)
\(=\left(465+9\right)+43556\)
\(=474+43556\)
\(=44030\)
![](https://rs.olm.vn/images/avt/0.png?1311)
3x + 181 = 465
3x = 465 - 181
x = 284 : 3
x = \(\frac{284}{3}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(15278\div5=\frac{7639}{28}\)
\(9975\div41=\frac{9975}{41}\)
\(685932\div235=2018.859574\)
15 278 : 56=272,8214286 685932 : 235=2918,859574
9975 : 41=243,2926829
k mk nha!!
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\(72+\frac{x}{x}\)\(+456=465\)
\(\Rightarrow72+1+456=465\)
\(\Rightarrow529=465\)(bất đẳng thức sai)
vậy ko có gái trị nào thỏa mãn
![](https://rs.olm.vn/images/avt/0.png?1311)
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\(\text{364 * 75 - 278 * 78 + 25 * 364 - 278 * 22}\)
\(=364.\left(75+25\right)+278.\left(-78-22\right)\)
\(=364.100+278.\left(-100\right)\)
\(=36400+\left(-27800\right)\)
\(=8600\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(237+465+763+531+535+469.\)
\(=\left(237+763\right)+\left(465+535\right)+\left(469+531\right)\)
\(=1000+1000+1000\)
\(=3000\)
=(237+763)+(465+535)+(531+469)
=1000+1000+1000
=3000
tk nhe
va kb nhe
465+278+15
=(465+15)+278
=480+278
=758
465+278+15
=(465+15)+278
=480+278
=758