Variable expressions

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Valor numérico de una expresión algebraica

Calcula el valor numérico de la expresión 2+h para h = 15.

Sustituye h=15 y simplifica:

2+h
2+15	Sustituye h=15
17	Suma

Calcula el valor numérico de la expresión -2-3m para m=-1.

Sustituye m=-1 y simplifica:

-2-3m
-2-3(-1)	Sustituye m=-1
-2+3	Multiplica
1	Resta

Calcula el valor numérico de la expresión -7-9y para y=2

Solución: -7-9y=