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a) y=1,8:0,75=2,4
b) y=0,483:0,15=3,22
c) y=2,7+(3,48:1,45)=5,1
d) y=(0,125+0,5):0,25=0,7
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a: =>y=1,25x3,14=3,925
b: =>y:0,24=15-7,8=7,2
hay y=1,728
c: =>10y=36,7
hay y=3,67
d: =>6:y=1,5
hay y=4
e: =>4y+0,2y=44,1
=>4,2y=44,1
hay y=10,5
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0,25 x y = 0,125 + 0,5
0,25 x y = 0,625
y = 0,625 : 0,25
y = 0,25
vậy x = ...
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\(a,y\times2,8+5,2\times y=48\\ y\times\left(2,8+5,2\right)=48\\ y\times8=48\\ y=\dfrac{48}{8}=6\\ ---\\ b,y\times12,25-y+y\times2,75=1050\\ y\times\left(12,25-1+2,75\right)=1050\\ y\times14=1050\\ y=\dfrac{1050}{14}=75\)
a: \(y\cdot2,8+y\cdot5,2=48\)
=>\(y\left(2,8+5,2\right)=48\)
=>\(8y=48\)
=>\(y=\dfrac{48}{8}=6\)
b: \(y\cdot12,25-y+y\cdot2,75=1050\)
=>\(y\left(12,25-1+2,75\right)=1050\)
=>\(y\cdot14=1050\)
=>\(y=\dfrac{1050}{14}=75\)
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a ) y : 0.5 + y x 3 = 2,3
y x 2 + y x 3 = 2,3
y x ( 2 + 3 ) = 2,3
y x 5 = 2,3
y =0,46
b ) y : 0 , 25 - y : 2,5 = 0,18
y x 4 - y x \(\frac{2}{5}\) = 0,18
y x ( 4 - \(\frac{2}{5}\)) = 0 , 18
y x 3,6 = 0 , 18
y =0,05
a) y:0.5+yx3=2.3 b)y:0.25-y:2.5 = 0.18
yx2+yx3=2.3 y x 4 - y x0.4 = 0.18
yx(2+3)=2.3 y x (4-0.4)=0.18
y=2.3:5 y x 3.6 = 0.18
y=0.46 y=0.18:3.6
y=0.05