8,25 x y + 1,25 x y = 20
y x ( 8,25 + 1,25 ) = 20
y x 10 = 20
y = 20 : 10
y = 2
\(8,25\times y+1,25\times y=20\)
\(\left(8,25+1,25\right)\times y=20\)
\(10\times y=20\)
\(y=20:10\)
\(y=2\)
8,25 x y + 1,25 x y = 20
y x (8,25+1,25) = 20
y x 10 = 20
y=20:10
y=2
8,25 x y + 1,25 x y = 20
= (8,25 + 1,25) x y = 20
= 10 x y =20
y = 20 : 10 = 2
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