Răspuns :
a)2x=2y ⇒ x/y=2/2=1
b)26x=18y ⇒x/y=18/26=9/13
c)x/25/100=6/10/y
x/1/4=3/5/y
x*4/1=3/5*1/y
4x=3/5y
x=3/5y /4
x=3/5y*1/4
x=3/20y
100*3/20y*y=15y/y =15
b)26x=18y ⇒x/y=18/26=9/13
c)x/25/100=6/10/y
x/1/4=3/5/y
x*4/1=3/5*1/y
4x=3/5y
x=3/5y /4
x=3/5y*1/4
x=3/20y
100*3/20y*y=15y/y =15
a)2x=2y ⇒ x/y=2/2=1
b)26x=18y ⇒x/y=18/26=9/13
c)x/25/100=6/10/y
x/1/4=3/5/y
x*4/1=3/5*1/y
4x=3/5y
x=3/5y /4
x=3/5y*1/4
x=3/20y
100*3/20y*y=15y/y =15
b)26x=18y ⇒x/y=18/26=9/13
c)x/25/100=6/10/y
x/1/4=3/5/y
x*4/1=3/5*1/y
4x=3/5y
x=3/5y /4
x=3/5y*1/4
x=3/20y
100*3/20y*y=15y/y =15