65 x y + 35 x y = 6000
( 65 + 35 ) x y = 6000
100 x y = 6000
y = 6000 : 100
y = 60
65×y+35×y=6000
(65+35)×y=6000
100×y=6000
y=6000:100
y=60
65 x y + 35 x y = 6000
y x ( 65 + 35 ) = 6000
y x 100 = 6000
y = 6000 : 100
y = 60
\(65\cdot y+35\cdot y=6000\)
\(\left(65+35\right)\cdot y=6000\)
\(100\cdot y=6000\)
\(y=6000:100=60\)
\(65\times y\)\(+\)\(35\times y\)\(=\)\(6000\)
\(\Leftrightarrow\)\(y\)\(\times\)\(\left(65+35\right)\)\(=\)\(6000\)
\(\Leftrightarrow\)\(y\)\(\times\)\(100\)\(=\)\(6000\)
\(\Leftrightarrow\)\(y\)\(=\)\(6000\)\(:\)\(100\)\(=\)\(60\)
Vậy....
65xy+35xy=6000
(65+35)xy=6000
100xy=6000
y=6000:100
y=60
y x (65+35)=6000
y x 100=6000
y=6000:100
y=60
65 x y + 35 x y = 6000
y x ( 65 + 35 ) = 6000
y x 100 = 6000
y = 6000 : 100
y = 60
65 x y + 35 x y = 6000.
( 65 + 35 ) x y = 6000.
100 x y = 6000.
y = 6000 : 100.
y = 60.
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