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Mathematics, 25.11.2020 15:20 Marisajordon16

Resolver y comprobar la solución de las siguientes ecuaciones: a) 3x + 8 = 29
b) 2y -5 + 3y = 25 + 13 3 y
c) Si sumamos 12 a la mitad de un número obtenemos 27. ¿Cuál es el número?
d) La suma de los 2/3 de un número con los 3/4 del mismo número es 17. Hallar el número.
e) La diferencia de dos números es 16 y el número menor menos 2 unidades es igual a los 3/4 del número mayor. Hallar los números.
f) Si a un número le sumas 7 y el resultado lo multiplicas por 3, obtienes 2 unidades menos que 4 veces el número. ¿Cuál es el número?
g) Doña María compra 30 empañadas por $24.000 y las vende de modo que el 20% de lo que le pagan le queda de ganancia. ¿A cómo vende cada empanada?
h) La finca de Luis tiene 30 árboles más que la mitad de los árboles de la finca de Juan. Si los árboles de las dos fincas son en total 300, cuántos árboles tiene cada una

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Resolver y comprobar la solución de las siguientes ecuaciones: a) 3x + 8 = 29
b) 2y -5 + 3y...
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