stacey-wood_60b2676a110bf
stacey-wood_60b2676a110bf
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x+y=500 0,2x+0,4y=130 x=500-y 0,2(500-y)+0,4y=130 100-0,2y+0,4y=130 0,2y=30 y=150 x+y=500 x+150=500 x=350 Está aí o que você queria.