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a) x - 452 = 77 + 48
x - 452 = 125
x= 125 + 452
x= 577
b) x + 58 = 64 + 58
x + 58 = 122
x= 122 - 58
x= 64
c) x - 1 - 2 - 3 - 4 = 0
x= 0 + 4 + 3 + 2 +1
x= 10
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X x 3= 153 X : 2 = 320
X = 153 : 3 X = 320 x 2
X = 51 X = 640
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(x+1)+(x+2)+(x+3)+(x-4) = 98
4x + (1+2+3 - 4) = 98
4x + 2 = 98
4x = 98 - 2
4x = 96
x = 96 : 4
x = 24
tích mik nhe !!!
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2x X x3-110=710
=>(2x3)x X+ 110=710
=>6x X=710-110
=>6x X=600
=> X=600: 6
=>X=100
2xXx3-110=710
2xXx3=710+110
2xXx3=820
6xX=820
X=820:6
X=\(\frac{410}{3}\)
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\(720:\left(x\times2+x\times3\right)=2\times3\)
\(720:\left(x\times5\right)=6\)
\(x\times5=720:6\)
\(x\times5=120\)
\(x=120:5\)
\(x=24\)
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720 : ( X x5 )= 6
X x 5 = 720 : 6
X x 5 =120
X = 120 : 5
X = 24
chúc bạn học tốt
720:(x.2+x.3)=2.3
=> 720:[x.(2+3)]=6
=> x.5 =720:6
=> x.5 =120
=> x =120:5
=> x =24
Vậy x=24
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a,7,12
b,1,23
x=7,12
1,23