3a+8b=30 b=1/4a a={ } b={ }
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3a+8b=30 b=1/4a a={ } b={ }
3a+8b=30 b=1/4a a={ } b={ }
3a+8b=30 b=1/4a a={ } b={ }
3a+8x a/4=30
3a+2a=30
a=6
b=1/4 x6=1.5
3a+8b=3a+8*1/4*a=5a=30
a=6
b=1/4*a=6/4=1.5