A.5:1 B.5:2 5:3 4:1
A.10:10 B.l:1 2:5 5:2
A.2A+B=C+2D B.A+2B=C+2D C.2A+B=2C+D A+B=C+D
A.2A+B═C+2D B.A+2B═C+2D C.2A+B═2C+D A+B═C+D
A.2A+BC+2D B.A+2BC+2D
C.2A+B2C+D A+BC+D
A.5:1 B.5:2 5:3 4:1
A.2A+BC+2D B.A+2BC+2D
C.2A+B2C+D A+BC+D
A.4:1 B.5:1 5:3 5:2
A.5:1 B.5:2 5:3 4:1