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Popolare Word Problems >

The sum of three numbers is 79 . The second number is 2 times a number. The first number is 7 more than a number

Soluzione

T h e s u m o f t h ree n u mb ers i s 79 . T h e seco n d n u mb er i s 2 t im es a n u mb er . T h e f i rs t n u mb er i s 7 m ore t han a n u mb er

Soluzione

Nessuna soluzione

Fasi della soluzione

Represent the numbers with

x, y, z

:

number 1 : x

number 2 : y

number 3 : z

A.T.Q.:

x + y + z = 79

y = 2 x

x = 7 + x

Risolvi il sistema di equazioni:

x + y + z = 79, y = 2 x, x = 7 + x :

Nessuna soluzione

Nessuna soluzione

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