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Mathematics, 03.09.2021 01:00 noeltan12031

La suma de dos compras es de $200. Si el doble de la primera compra menos la segunda es $40, ¿cuál es la expresión que resuelve cuánto se pagó por cada una de las compras?

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La suma de dos compras es de $200. Si el doble de la primera compra menos la segunda es $40, ¿cuál e...
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