harley-carter_6098254d65ebb
harley-carter_6098254d65ebb
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numero de autos: a numero de bikes: b b = 3a (bicicletas=triplo de carros) Total de rodas: 4 cada carro + 2 cada bicicleta = 4a+2b = 130 Resolvendo a equação: 4a+2b=130, usando b=3a 4a+2.(3a)=130 4a+6a=130 10a=130 a=130/10 =13 b= 3a = 3.…