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2x + 3x = 25
Solo hay que resolver.
2x + 3x = 25
5x = 25
x = 25 : 5
x = 5
El número en cuestión es 5.
Entonces:
¿Cuál es el número cuyo diplo más su tiplo es igual a 25?
===>>> 2x + 3x = 25
RESOLVIENDO:
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2x + 3x = 25
5x = 25
x = 25 ÷ 5
x = 5
COMPROBAMOS:
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2x + 3x = 25
2(5) + 3(5) = 25
10 + 15 = 25
25 = 25 ==>>> CORRECTO
RESPUESTA:
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El numero es 5