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287+(-96) + (-287) + 36
=(287 - 287 ) + (-96 + 36 )
= 0 + ( -60)
= -60
![](https://rs.olm.vn/images/avt/0.png?1311)
\(x=96-12=84.\)
\(x=96-12=84\)
\(x=98-78=20\)
\(x=69-27=42\)
\(x=85-20=65\)
\(x=129-85=44\)
\(x=201-129=72\)
\(x=98+129=227\)
96 - x = 12
x = 96 - 12
x = 84
78 + x = 98
x = 98 - 78
x = 20
x + 27 = 69
x = 69 - 27
x = 42
x + 20 = 85
x = 85 - 20
x = 65
x + 85 = 129
x = 129 - 85
x = 44
x + 129 = 201
x = 201 - 129
x = 72
x - 129 = 98
x = 129 - 98
x = 31
k mình nha , Thank you !
![](https://rs.olm.vn/images/avt/0.png?1311)
\(96+98\times96+1\times96\)
\(=1\times96+98\times96+1\times96\)
\(=\left(1+1+98\right)\times96\)
\(=100\times96\)
\(=9600\)
96 + 98 x 96 + 1 x 96
= 96 x ( 1 + 98 + 1 )
= 96 x 100
= 9600
Ủng hộ nha!
![](https://rs.olm.vn/images/avt/0.png?1311)
a. 96 : 8 : 2 = 6
96 : ( 8 x 2 ) = 6
96 : 8 : 2 = 96 : ( 8 x 2 )
b. 81 : 9 : 3 = 3
81 : ( 9 x 3 ) = 3
81 : 9 : 3 = 81 : ( 9x 3)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có: \(x+\frac{x}{3}=96-12.5\)
\(\Rightarrow\frac{2x}{3}=96-60\)
\(\Rightarrow2x:3=36\)
\(\Rightarrow2x=36.3=108\)
\(\Rightarrow x=108:2=54\)
Vậy x = 54
\(x+\frac{x}{3}=96-60=36\)
\(x+x\times\frac{1}{3}=36\)
\(x\times\frac{4}{3}=36\)
\(x=36:\frac{4}{3}=27\)
![](https://rs.olm.vn/images/avt/0.png?1311)
-96 : 2 - x = - (32 - x) -12
-48 -x = -32 + x - 12
-x - x = -32 + 12 + 48
-2x = 28
x =28/ -2
x = -14
hok tốt!
-96 : 2 - x = - (32 - x) -12
=> -48 - x = -32 + x - 12
=> -48 - x = x - 44
=> -x = x - 44 + 48
=> -x - x = 4
=> -2x = 4
=> x = -2
\(=96x\left(12+287+1\right)=96x300=28800\)
12 x 96 + 287 x 96 + 96
= 12 x 96 + 287 x 96 + 96 x 1
= (12 + 287 + 1) x 96
= 300 x 96
= 28 800