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8L+5B=20.85 * 5
40L+64B=192
40L+25B=104.25 -
39B=87.75
B=2.25
A=1.2
2L+3B=9.15
8x+5y=20.85....(x5) 40x+25y= 104.25 restamos
39y=87.75 y = 2.25 5x+8(2.25)=24 resolvemos
5x=6 x= 1.2
rpta 2(1.2) + 3(2.25) = 9.15