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48576 + X x 4 - 47684 = 1692
48576 + X x 4 = 1692 + 47684
48576 + X x 4 = 49376
X x 4 = 49376 - 48576
X x 4 = 800
X = 800 : 4
X = 200
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a, 58647 - x : 6 + 1383 = 6000
58647 - x : 6 = 6000 - 1383
58647 - x : 6 = 4617
x : 6 = 58647 - 4617
x : 6 = 54030
x = 54030 x 6
x = 324180
b, 48576 + x . 4 - 47684 = 1692
48576 + x . 4 = 1692 + 47684
48576 + x . 4 = 49376
x . 4 = 49376 - 48576
x . 4 = 800
x = 800 : 4
x = 200
a)58647-x:6+1383=6000
58647-x:6 =6000-1383
58647-x:6 =4617
x:6 =58647-4617
x:6 =54030
x =54030x6
x =324180.
b) 48576+x.4-47684=1692
48576+x.4 =1692+47684
48576+x.4 =49376
x.4 =49376-48576
x.4 =800
x =800:4
x =200
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1) ( y-25):4 - 120 = 0 2) 120 - ( x+25 )x4 = 0
( y-25 ):4 = 0+120 (x+25) x4 =120-0
( y-25):4 =120 (x+25) x4 =120
( y-25)=120x4 (x+25)=120:4
y-25=480 x+25=30
y=480+25 x=30-25
y=505 x=5
k mk nha
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a, ( 372 + 300 ) : ( y x 3 ) = 8
672 : ( y x 3 ) = 8
y x 3 = 672 : 8
y x 3 = 84
y = 84 : 3
y = 28
b, 21 : ( y + 3 ) x 4 + 88 = 100
21 : ( y + 3 ) x 4 = 100 - 88
21 : ( y+3)x4 = 12
21 : ( y + 3 ) = 12 : 4
21 : ( y + 3 ) = 3
y + 3 = 21 : 3
y + 3 = 7
y = 7 - 3
y = 4
a) (372+300): (y x 3) =8
=> 672:8 = y x 3
=> 84 = y x 3
=> 84/3 = y
=> y = 28
b) 21:(y+3)x4 + 88 =100
=> 21: ( y+3) x 4=100-88
=>21 : (y+3) x 4 =12
=>21 : ( y+3 )=12/4
=>21 : (y+3)=3
=> 21/3=y+3
=>7=y+3
=>y=7-3
=>y=4
x x4=48576-47684
x x4 =892
x x4 =892+1692
x x4 =2584
x =2584:4
x =646
minh chua chac lam