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( 5 x − 19 ) + ( 3 x + 24 ) = 125
. 5 x − 19 + 3 x + 24 = 125
8 x + 5 = 125
8 x = 120
x = 15
![](https://rs.olm.vn/images/avt/0.png?1311)
38 x x + 24 x x + x = 4221
x x ( 38 + 24 + 1 ) = 4221
x x 63 = 4221
x = 4221 : 63
x = 67
Ung ho nhe mina~~~
![](https://rs.olm.vn/images/avt/0.png?1311)
= 38xX+24xX + X = 4221
= (38 + 24 +1 ) =4221
=63x X =4221
= 4221:63
X = 67
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
(38+24+1)*x = 4221
63*x = 4221
x = 67
Nộp bài cho cô giáo chắc chắn sẽ được 10đ.
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124 : x + 24 : x - 48: x = 25
( 124 + 24 - 48 ) : x = 25
100 : x = 25
x = 4
\(124\div x+24\div x-48\div x=25\)
\(\Leftrightarrow\left(124+24-48\right)\div x=25\)
\(\Leftrightarrow100\div x=25\)
\(\Leftrightarrow x=100\div25=4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(5x-19\right)+\left(3x+24\right)=125\)
.\(5x-19+3x+24=125\)
\(8x+5=125\)
\(8x=120\)
\(x=15\)
![](https://rs.olm.vn/images/avt/0.png?1311)
( X x 5 - 19) - X x 3 +24 = 125
(X x 5- 19) - X x 3 =125 - 24 = 101
X x 5 - 19 =101 + X x 3
X x 5- X x 3 =101 + 19 = 120
X x 2 =120
X =60
5280:x=24
x=5280:24
x=220
5280 : x =24
x= 5280 : 24
x = 220