Explicación paso a paso:
A) 5x=28/4
5x= 7
X = 7/5
B) 2a = 2/5
Donde a= (2/5)/2
A= 1/5
C) 0.2x=9/2
X=(9/2)/0.2
X= 45/2
D) 0.5y=27/10
Y= (27/10)/0.5
Y= 27/5
E) 3/4y=3/5
3y=(3/5)*4
3y=12/5
Y=(12/5)/3
Y=4/5
F) 23/5x=4
23x=4*5
23x=20
X=20/23
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Verified answer
Explicación paso a paso:
A) 5x=28/4
5x= 7
X = 7/5
B) 2a = 2/5
Donde a= (2/5)/2
A= 1/5
C) 0.2x=9/2
X=(9/2)/0.2
X= 45/2
D) 0.5y=27/10
Y= (27/10)/0.5
Y= 27/5
E) 3/4y=3/5
3y=(3/5)*4
3y=12/5
Y=(12/5)/3
Y=4/5
F) 23/5x=4
23x=4*5
23x=20
X=20/23